Recovery Over Time and Prognostic Factors in Treated Patients with Post-Infectious Olfactory Dysfunction: A Retrospective Study

2020 ◽  
Vol 129 (10) ◽  
pp. 977-982
Author(s):  
Takao Ogawa ◽  
Keigo Nakamura ◽  
Sayuri Yamamoto ◽  
Ichiro Tojima ◽  
Takeshi Shimizu

Objectives: The aims of the present study were to clarify the time-course of olfactory recovery and the prognostic factors in PIOD patients treated with Toki-shakuyaku-san (TSS). Methods: A retrospective cohort study of patients with PIOD was conducted by reviewing patients’ medical records. This study included patients who received TSS or a combination of TSS and zinc sulfate. Olfactory function was examined by T&T olfactometer at each 3-monthly follow-up visit. Patients with normal and mild olfactory dysfunction were excluded. Gender, age, treatment, duration of disease until the first visit and olfactory function scores of the T&T olfactometer at the first visit were analyzed as candidate clinical predictors of recovery. Results: A total of 82 PIOD patients with ages ranging from 16 to 79 years were included. The mean duration of follow-up was 14.5 months (range 3-45 months). The number of patients with olfactory recovery increased for 24 months and the cumulative recovery rate was 77.3%. In about 60% of patients, olfactory recovery occurred within 6 months. Multivariate analysis showed that younger age (<65 years) and residual olfactory function were significantly associated with good olfactory recovery. Conclusions: We revealed recovery rates over time in patients with PIOD. The recovery of olfactory function often occurred during the early period (≤6 months). However, the number of patients with olfactory recovery increased for a long-term of 24 months after the first visit. Residual olfactory function and younger age were prognostic factors exactly. TSS may be a useful therapeutic agent for patients with PIOD. We believe that these results provide important information that is useful for counseling patients with PIOD.

ORL ◽  
2021 ◽  
pp. 1-10
Author(s):  
Janne Schwab ◽  
Caroline Damsgaard Jensen ◽  
Alexander Wieck Fjaeldstad

<b><i>Introduction:</i></b> Chemosensory dysfunction (CD) has proven valuable in prediction of COVID-19, as it is a frequent and specific symptom of the disease. The aim of this study was to investigate the duration of CD in patients with sudden subjective olfactory and/or gustatory loss during the SARS-CoV-2 pandemic. The secondary aim was to identify possible prognostic factors for the duration of CD. <b><i>Methods:</i></b> An online baseline questionnaire was designed to assess subjective CD. Three rounds of follow-up questionnaires were sent out to any participants with persistent CD in 6-week intervals, prospectively assessing subjective chemosensory function and extending the follow-up time of this cohort significantly. <b><i>Results:</i></b> In total, 467 participants completed the baseline questionnaire. The most significant improvement and recovery of chemosensory function was observed within the first month after the initial loss. Rates became stagnant after about 2 months, and only little improvement and recovery was seen after 2–4 months. After a mean follow-up of 95.9 days (olfactory dysfunction) and 94.0 days (gustatory dysfunction), 86.7% of participants reported gustatory improvement and 82.6% reported olfactory improvement, while 55.0% reported full gustatory recovery and 43.8% reported full olfactory recovery. Female gender was associated with better improvement of gustatory function. High subjective severity of chemosensory loss was associated with lower rates of olfactory and gustatory recovery as well as improvement of olfactory function. Young age was not associated with a better prognosis. <b><i>Discussion/Conclusion:</i></b> Rates of improvement and recovery of chemosensory function decreased after 2–4 months after initial chemosensory loss, possibly indicating that prolonged and perhaps permanent chemosensory loss may be a complication of SARS-CoV-2 infections. High subjective severity of CD may worsen the prognosis for improvement and recovery of chemosensory function.


2017 ◽  
Vol 25 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Gabriel Bsteh ◽  
Harald Hegen ◽  
Felix Ladstätter ◽  
Klaus Berek ◽  
Matthias Amprosi ◽  
...  

Background: Impaired olfactory threshold has been reported in early inflammatory phases of MS, while impaired odor identification was associated with more widespread disability. Objective: To prospectively assess the development of olfactory function and its correlation with relapse and disability progression. Methods: In this prospective, 3-year longitudinal study on 151 MS patients and 30 healthy controls, three different qualities of olfactory function (threshold, discrimination, and identification) were quantified using the Sniffin’ Sticks test. The influence of relapses and disability on olfactory function was analyzed at different time points and in a multivariate model. Results: Discrimination and identification capability significantly worsened over 3 years, while threshold did not. Threshold was markedly impaired in patients with relapse activity within 12 months, recovered in the absence of relapse, and was associated with a 2.5-fold increased risk of relapse. Deterioration of discrimination and identification was irreversible and both strongly associated with and predictive of EDSS progression. Conclusion: Olfactory function changes over time in MS. Threshold impairment is transient and predicts inflammatory disease activity, while odor identification and discrimination are associated with disability progression. Olfactory dysfunction might be a useful and easily obtainable parameter to monitor patients with regard to inflammation and neurodegeneration in MS.


Rheumatology ◽  
2021 ◽  
Author(s):  
Saeedeh Shenavandeh ◽  
Mehrnoush Ajri ◽  
Sahand Hamidi

Abstract Objective In patients with RP, capillaroscopy is useful for discriminating primary from secondary causes. There are certain capillaroscopy and lab values as predictive factors leading to a known CTD. We conducted the present study to evaluate the causes of RP in our area and followed the studied subjects to find prognostic factors indicating a definite CTD or remaining a UCTD. Methods In this retrospective cohort study we included all adult patients with RP who were referred for capillaroscopy from 2010 to 2019. All the patients with primary and secondary RP with follow-up were evaluated for demography, laboratory results and capillaroscopy to find the risk factors of their progression to a CTD. Results A total of 760 of 776 patients were included, with 679 being female (89.3%) and 81 (10.7%) male. There were 660 subjects (90.8%) with secondary RP [mostly UCTD (48.2%) and then SSc (16.4%)] and 67 (9.2%) with primary RP; 109 patients were followed up and 42 (42%) of those with secondary RP developed a definite CTD. The scleroderma pattern and some capillary changes on capillaroscopy and/or positive ANA had statistically significant differences for CTD transition. Conclusion We had a small number of patients with primary RP. The most prevalent causes of secondary RP in our patients were UCTD and SSc. Some capillaroscopy and laboratory results alone or in combination could be used as a predictive marker for the transition of patients with UCTD to CTD.


2019 ◽  
Vol 21 (Supplement_3) ◽  
pp. iii86-iii86
Author(s):  
T Reynaud ◽  
A Bertaut ◽  
W Farah ◽  
D Thibouw ◽  
G Crehange ◽  
...  

Abstract BACKGROUND The standard of care for patients with recurrent glioblastoma or grade III glioma has not yet been clearly defined and many approaches are available for salvage strategies. These include surgery, re-irradiation or systemic agents. For the treatment of High-Grade (HGG) recurrence by radiation therapy, Hypofractionated Stereotactic Radiotherapy (HFSRT) is an interesting approach because it is minimally invasive, ambulatory, short-lasting and well tolerated. The aim of this study was to evaluate the efficacy of and safety to HFSRT as alvage treatment for patients suffering from HGG relapse in our cancer center and to compare these results with the literature. MATERIAL AND METHODS Between March 2012 and March 2017, 32 consecutive patients (12 women, 20 men) treated in a single-center were retrospectively included included in this study.Grade III gliomas were diagnosed in 14 patients and grade IV in 18 patients. Thirty-four lesions were treated with HFSRT on LINAC. HFSRT delivered a dose of 30 Gy in six fractions of 5Gy (27 Gy in three fractions for one patient) with two or three fractions per week. The treatment plans were normalized to 100% at the isocenter, and prescribed to the 80 % isodose line. Clinical outcomes and prognostic factors were analyzed. RESULTS HFSRT characteristics: The median tumor volume was of 6.1 (0.1–42.2) cm3 and the median PTV was 15 (0.6–67.5) cm3. The median maximum dose, median minimum dose and median mean dose were 38.7 (32.7–42.0) Gy, 29.1 (14.0–32.4) Gy and 35.1 (31.5–37.5) Gy, respectively. Median follow-up was 20.9 months. Median overall survival (OS) following HFSRT was 15.6 months (Median OS for patients patients with GBM and grade III glioma were 8.2 and 19.5 months, respectively; p=0.0496). Progression-free survival (PFS) was 3.7 months (Median PFS for patients with GBM and grade III glioma were 3.6 and 4.5months, respectively; p=0.2424). In multivariate analysis, tumor grade III (p=0.0027), an ECOG status &lt;2 at the time of reirradiation (p=0.0023) and a mean dose &gt;35 Gy (p=0.0055) significantly improved OS. A maximum reirradiation dose above 38 Gy (p=0.0179) was significantly associated with longer PFS. Treatment was well tolerated, no acute toxicity &gt; grade 2 was observed. During the follow-up, ten patients (31.25%) had suspected radionecrosis. In six patients, this suspicion corresponded to tumor progression. For the other patients, radionecrosis was suggested on multi-modal MRI. CONCLUSION HFSRT appears to be a feasible and effective salvage treatment option for recurrent high-grade gliomas, with OS of 15.6 months. Prognostic factors associated with longer OS were a good general state of health and grade III glioma. Dosimetric data suggested that the dose gradient had an impact on tumor control and indicate that a study with dose-escalation is warranted. These results need to be confirmed in a prospective study with a greater number of patients.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1219-1220
Author(s):  
S. Kawaai ◽  
S. Fukui ◽  
T. Nakai ◽  
G. Kidoguchi ◽  
H. Ozawa ◽  
...  

Background:IgG4-Related Disease (IgG4RD) is known to cause multiple organ lesions with infiltration of IgG4-positive plasma cells, and patients often have relapses with tapering treatments despite an initial good response to glucocorticoids therapy. Mizoribine (MZR) is an immunosuppressant working as an inhibitor of purine synthesis, which mechanism of action is similar to mycophenolate mofetil. Data regarding the efficacy and safety of MZR on IgG4RD is limited although some previous case reports1showed effectiveness for IgG4RD.Objectives:This study aims to assess the efficacy and safety of MZR in patients with IgG4RD.Methods:We retrospectively reviewed charts of IgG4RD patients who used MZR between January 2004 and December 2019 at Immuno-Rheumatology Center in St. Luke’s International Hospital, Tokyo, Japan. We investigated basic demographics, involved organs, results of blood tests including IgG and IgG4 titer, and medications used including glucocorticoid and other immunosuppressants (IS). We followed IgG4 titer, dose of glucocorticoid, flare of disease and retention of MZR at the beginning, 6 and 12months after starting MZR. We compared changes in PSL (prednisolone) doses and IgG4 titers over time using Friedman test with Bonferroni correction. We also checked adverse events during follow up.Results:Twenty-two patients with IgG4RD who used MZR were included. Median age was 62 years old, and 15 (68.2%) patients are male. Lacrimal and salivary glands, pancreatitis and retroperitoneal fibrosis were common lesions. All patients were initially treated with glucocorticoids. Flare was observed in 5 (22.7 %) patients before initiation of MZR. The number of patients who continued MZR without flare are 19 (86.4 %) at 6 months, and 14 (73.7 %) at 12 months. IgG4 titer significantly declined at 6 and 12 months from baseline although significant consecutive decrease in PSL dose (Figure 1, 2). Liver dysfunctions are commonest adverse events (n=16, 72.7%) but mild (grade1; n=15, 68.2%) and most cases are apparently due to other reasons. Serious infection (SI) occurred in 3 (13.6%) patients in total follow up, however no SI were observed during 1 year after MZR treatment.Conclusion:MZR can be safely used in patients of IgG4RD with high retention rate, and seemed to have steroid-sparing effect. Prospective comparative studies are needed.References:[1]Nanke Y, Kobashigawa T, Yago T, Kamatani N, Kotake S. A case of Mikulicz’s disease, IgG4-related plasmacytic syndrome, successfully treated by corticosteroid and mizoribine, and then by mizoribine alone. Intern Med 49: 1449-1453, 2010.Table 1.Patient characteristics    Table 2.Disease and treatment status before and after initiation of MZR    Figure 1.Serum IgG4 level changesFigure 2.Changes in the PSL dose over timeDisclosure of Interests:None declared


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 4791-4791 ◽  
Author(s):  
Sylvain P Chantepie ◽  
Audrey Emmanuelle Dugué ◽  
Patrice Chevallier ◽  
Aline Schmidt-Tanguy ◽  
Véronique Salaün ◽  
...  

Abstract Abstract 4791 Acute lymphoblastic leukemia (ALL) multiparameter flow cytometry (MFC) study of bone marrow aspiration after chemotherapy is crucial for determining minimal residual disease (MRD). Hematogones (HGs) have to be distinguishing from leukemic cells in B-cell subtypes and could be quantify during follow-up. To date, the incidence of Hgs in ALL and their prognostic significance have not been investigated. The aim of this multicenter study was to quantify Hgs after chemotherapy in ALL adult patients and to define its prognostic value. We retrospectively analyzed the incidence of HGs in 95 ALL patients, 71 with B-ALL (75%), 24 (25%) with T-ALL in first line treatment. The median age was 37 years [8–71], 20% had t(9;22) cytogenetic abnormality, and 70% had abnormal karyotype. 4/5-color MFC analysis MRD and HGs were performed at different time point (TP) after diagnosis: TP1 (post-induction, day 45 [41–61], n=78), TP2 (post-consolidation, day 111 [94–144] 25, n=42), TP3 (post-intensification/before hematopoietic stem cell transplantation (HSCT), day 179 [125–268], n=58), TP4 (n=11), TP5 (n=17), TP6 (n=9) after a median of 33, 91 and 167 days after HSCT, respectively. A total of 39 patients (41%) relapsed with a median of 26 months [7.7–47.9]. Forty seven patients (50%) received an HSCT in a complete (98%) or partial remission (2%). At TP1, TP2, TP3, TP4, TP5, TP6, the median HGs [range] were as followed: 0.00 [0.00–6.90]%, 0.30 [0.00–11.2]%, 0.98 [0.00–33.00]%, 0.52 [0.00;23.00]%, 5.50 [0.00;25.00]%, 4.60 [0.00;34.00]%, 5.90 [0.32;11.80]%, respectively. Figure 1 showed the percentage of patients with negative MRD (Figure 1A) and detectable HGs (figure 1B) during the follow up of ALL patients. There is a progressive increase of the percentage of patients with detectable HGs during the time of treatment and follow-up. Interestingly, there was no correlation between age and HGs level while in physiological situation the HGs rate decreases with increasing age. There was a negative correlation between positive MRD and detectable HGs at TP1 (p=0.022) but not at TP3 (p=0.88). In univariate analysis positive MRD at P1 and P3, age (/10), the presence of t(9;22) and absence of HGs at TP3 (figure 2) were bad prognostic factors for relapse free-survival (RFS) and overall survival (OS). The presence of HGs at other different time of evaluation was not associated with a significant decrease of relapse or death. However, patients who had a negative MRD at TP1 and detectable HGs in the bone marrow at TP3 exhibited a better RFS and OS (p=0.018 and p=0.065 respectively). Patients who had negative MRD at TP3 and had detectable HGs at TP3 had also a better RFS and OS (p=0.007 and p=0.011, respectively) compared to patients with negative MRD at TP3 and without HGs (figure 3). In patients who had a positive MRD at TP1, detectable HGs at TP3 identified a subgroup of patient with favorable OS compared to patient with positive MRD at TP1 and without detectable HGs (p=0.072). These results should be taken with cautious because of the decreasing number of patients evaluated at different time points. However, HGs analysis could represent a new area of investigation in search of new prognostic factors in the context of adult ALL. Figure 1. Percentage of patients with (A) negative MRD and (B) detectable HGs at different time points after starting of treatment. Figure 1. Percentage of patients with (A) negative MRD and (B) detectable HGs at different time points after starting of treatment. Figure 2. Overall survival according to HGs status at TP3. Figure 2. Overall survival according to HGs status at TP3. Figure 3. Overall survival in patients with negative MRD at TP3 according to HGs status. Figure 3. Overall survival in patients with negative MRD at TP3 according to HGs status. Disclosures: No relevant conflicts of interest to declare.


2016 ◽  
Vol 33 (S1) ◽  
pp. S477-S478 ◽  
Author(s):  
E. Bainbridge ◽  
B. Hallahan ◽  
D. McGuinness ◽  
A. Higgins ◽  
K. Murphy ◽  
...  

IntroductionInvoluntary admission and treatment is often a traumatic experience for patients and there is a wide variation in attitudes towards care even when patients are recovered.Objectives/aimsThe purpose of this large prospective study was to identify clinical predictors of attitudes towards care during involuntary admission.MethodsThree hundred and ninety-one consecutively admitted involuntarily patients to three psychiatric inpatient units over a 30-month period were invited to participate in the study. Comprehensive assessments at admission and 3 months after discharge were attained including measures of symptoms, insight, functioning, attitudes towards involuntary admission and coercive experiences. Multiple linear regression modelling was used to determine the optimal explanatory variables for attitudes towards care.ResultsTwo hundred and sixty-three individuals participated at baseline and 156 (59%) successfully completed follow-up assessments. Individuals improved significantly over time clinically and in their attitudes towards their care. At baseline greater insight (P < 0.001) and less symptoms (P = 0.02) were associated with more positive attitudes towards care as was older age (P = 0.001). At follow-up, greater insight (P < 0.001), less symptoms (P = 0.02) and being older (P = 0.04) were associated with more positive attitudes towards care. More positive attitudes towards care at follow-up were associated with greater improvements in insight over time (P < 0.001) and having a diagnosis of an affective psychosis (P = 0.0009).ConclusionsThe best predictors of positive attitudes towards care during and after involuntary admission are illness related factors, such as levels of insight and improvement in insight, rather than service or legislation related factors, such as the use of coercive measures, seclusion and restraint.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2017 ◽  
Vol 96 (10-11) ◽  
pp. E8-E12 ◽  
Author(s):  
Serhan Derin ◽  
Selvet Erdogan ◽  
Murat Sahan ◽  
Mehmet Fatih Azik ◽  
Hatice Derin ◽  
...  

Ocular and ophthalmologic adverse effects may occur in patients with β-thalassemia major (BTM) treated regularly with blood transfusions and iron-chelating agents. We hypothesized that olfactory dysfunction may be present in this patient population. We aimed to investigate olfactory dysfunction in patients with BTM and to determine etiologic factors. A total of 43 patients with BTM were included in the study. Forty-three subjects without nasal complaints, history of facial trauma, or nasal surgery were included as the controls. All participants had nasal endoscopy. The use of iron-chelating agents by patients with BTM and their duration of use were recorded, as well as hemoglobin and ferritin levels. The Sniffin Sticks test (SST) was used to assess olfactory function, comparing results between the BTM and control groups. The correlations of SST scores with the other study parameters were analyzed. Eight (18.6%) of 43 patients in the BTM group and none of the subjects in the control group had hyposmia (p < 0.001). Older age, low hemoglobin level, and longer use of deferoxamine were found to be correlated with olfactory dysfunction. Olfactory dysfunction can occur in patients with BTM treated with iron-chelating agents. The results suggest that screening for olfactory function should be part of the routine follow-up of patients with BTM.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 4622-4622
Author(s):  
Michael Axelson ◽  
Shirisha Reddy ◽  
Crystal Lumby ◽  
Sue Sivess-Franks ◽  
Jonathan Dowell ◽  
...  

Abstract Background: Myelodyplastic syndrome (MDS) is the disease of the elderly and increasingly common in the veteran population. Here we report a single institution experience with MDS at the Dallas VA Medical Center. Patients and Method: From a period of 1998–2007, eighty three pts were identified out of which 54 pts had bone marrow (BM) biopsy proven diagnosis of MDS. Overall survival (OS) analysis with dependent variables (Age at diagnosis, IPSS Score, WHO morphologic diagnosis, number of blood and platelet transfusions required, Hb level, ANC, cytogenetics, blast percentage, BM cellularity at diagnosis) were conducted by selection method “foreward” and only these significant variables were used in the Cox regression for multivariate analysis. Methods of Kaplan and Meier were used to generate OS curves. Results: The median age of diagnosis was 74 yrs with a median follow up time of 12.5 months. The WHO morphologic subtype was RA/RARS (n=13), Del5q (n=1), RCMD/RCMDRS (n=34), RAEB1 (n=3), RAEB2 (n=1), missing (n=2). The distribution of IPSS score was 0 (n=25); 0.5 (n=15); 1.0 (n=8), 1.5 (n=4), missing (n=2). Five pts had treatment related MDS and 3 pts transformed to AML. One patient had concurrent MGUS and one patient developed multiple myeloma. At diagnosis, 23 pts had a hemoglobin (Hb) value of less than 10g/dl. Only 4 pts had ANC less than 500; sixteen pts had ANC 500–1800 and 34 pts had normal counts. A majority of pts had normal cytogenetics (n=37), 5 pts had good risk, 5 pts had intermediate risk and 7 pts had poor risk cytogenetics. Six pts had hypocellular (<30%) BM at diagnosis whereas 16 pts had a hypercellular marrow (> 50%). Only 4 pts had more than 5% blast in the BM. Twenty nine pts eventually became blood transfusion dependent and 12 pts needed platelet transfusion at some point. Thirty six pts were treated with erythropoietin (with or without neupogen) and 13 pts received some type of disease modifying therapy (5-azacytidine/lenalidomide/ATG/clinical trial). The mean survival time was 106 months. Median survival was not reached at the time of analysis. In the univariate analysis, IPSS score (p=0.003), No. of blood transfusions (p=0.028), cytogenetics (p=0.0001) and blast percentage (p=0.0015), were statistically significant. BM cellularity (p=0.06) and Hb level (p=0.09) showed a trend towards significance. On multivariate analysis, Hb greater than 10 (HR 0.08; p=0.011), abnormal cytogenetics (HR 4.2; p=0.001), BM Blast > 5% (p=0.026) and BM cellularity < 30% (HR 4.6; p=0.033) emerged as the significant predictors of overall survival. IPSS score or Blood transfusion requirement did not pan out to be significant. Conclusion: MDS in the veteran population may be different from general population and may have unique predictors of survival. A larger number of patients and longer duration of follow up is required to further evaluate these prognostic factors.


2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Audrey Neuprez ◽  
Jean-François Kaux ◽  
Médéa Locquet ◽  
Charlotte Beaudart ◽  
Jean-Yves Reginster

Abstract Background This study measured the magnitude and determinants of clinical and radiological progression in patients with hand osteoarthritis (HOA) over a 2-year prospective follow-up to gain a greater understanding of the disease time course. Methods Two hundred three consecutive outpatients diagnosed with HOA were followed for 2 years (183 women, median age 69 years). Pain and function were evaluated using the Australian/Canadian Osteoarthritis Hand Index (AUSCAN), and clinical examination recorded the number of painful/swollen joints and nodes. X-rays were scored using Kellgren-Lawrence (KL) and Verbruggen-Veys scales. Clinical progression was defined as deterioration in AUSCAN ≥ the minimal clinically important difference. Radiographic progression was defined as (a) one new erosive/remodeled joint, (b) progression of ≥ one anatomical stage in one joint, or (c) change in KL total score above the smallest detectable difference. Logistic regression was performed to determine whether patient characteristics influenced clinical and radiological progression. Results After 2 years, all radiographic scores deteriorated significantly in the study population (p <  0.05), and the number of proximal and distal interphalangeal nodes was significantly higher (p <  0.01). The AUSCAN, number of painful joints at rest or at pressure, number of swollen joints, and pain measure on a visual analog scale remained unchanged. At the individual level, the number of patients with clinically meaningful progression ranged from 25 to 42% (clinical progression) and from 22 to 76% (radiological progression). The only significant predictor of worsening of total AUSCAN was AUSCAN pain subscale < 74.5 (odds ratio [OR] 1.02 [1.01, 1.03]; p <  0.01). The presence of ≥ four swollen joints (OR 2.78 [1.21, 6.39]; p = 0.02) and erosive osteoarthritis (OR 13.23 [5.07, 34.56]; p <  0.01) at baseline predicted a new erosive joint. A meaningful change in KL was more frequent with painful joints at baseline (OR 3.43 [1.68, 7.01]; p <  0.01). Conclusions Evidence of radiological progression over 2 years was observed in patients with HOA in the LIHOC population even without clinical worsening of disease. For individual patients, baseline pain level is predictive for clinical progression and the presence of erosive or swollen joints are significant predictors of radiological progression.


Sign in / Sign up

Export Citation Format

Share Document