Camrelizumab combined with FLOFOX as neoadjuvant therapy for resectable locally advanced gastric and gastroesophageal junction adenocarcinoma: Updated results of efficacy and safety.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 4036-4036
Author(s):  
Ying Liu ◽  
Guangsen Han ◽  
Hongle Li ◽  
Yuzhou Zhao ◽  
Zhi Li ◽  
...  

4036 Background: Although anti-PD-1 antibody in combination with chemotherapy has shown promising antitumor activity in advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC), the evidence of neoadjuvant therapy for locally advanced GC/GEJC is limited. Camrelizumab combined FOLFOX as neoadjuvant therapy for resectable locally advanced GC/GEJC was a prospective, single-arm, phase 2 study we conducted. Here, we updated the results of efficacy and safety of this study. Methods: Patients confirmed by endoscopic ultrasonography (EUS) and imaging with clinical stage≥T2 and/or positive lymph nodes were enrolled. They received 4 cycles of camrelizumab (200mg ivgtt on day1, q2w) plus FOLFOX (oxaliplatin 85mg/m2 ivgtt, LV 200mg/m2 ivgtt, 5-Fu 400mg/m2 iv followed by 2.4mg/m2 CIV 46 hours on day 1, q2w) as neoadjuvant therapy. Then patients without disease progression evaluated by imaging underwent gastrectomy of D2 lymph node dissection. The primary endpoint was pCR, the secondary endpoints were R0 resection rate and safety. Results: Between Jul 24 2019 and Nov 30 2020, 49 patients were enrolled. The median age was 57 years (29-72 years). All patients completed 4 cycles treatment. Unfortunately, 2 of them were confirmed PD by imaging. In addition, two patients refused gastrectomy and withdrew from the study. Eventually, 45 patients underwent gastrectomy, of which 3 patients had intraperitoneal metastases during the operation. A total of 42 patients were evaluable, all of them gained R0 resection (100%), 4 patients (10%) achieved pCR and 10 patients (24%) reached TRG1. Among the patients experienced pCR, one of them was Her-2 positive, one was MSI-H, the rest two of them were PD-L1-positive (CPS≥10). The most common ≥grade 3 adverse events (AEs) were neutropenia (35%) and leukopenia (16%). Only 1 patient (2%) experienced grade 3 immune-related AEs of alanine aminotransferase and aspartate aminotransferase increase. No serious AEs resulted in termination of treatment or death. Conclusions: Camrelizumab combined with FOLFOX was an effective and safe neoadjuvant therapy strategy for patients with resectable locally advanced GC/GEJC. Furthermore, the analysis of biomarkers with clinical benefits is undergoing. Clinical trial information: NCT03939962. [Table: see text]

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e16549-e16549
Author(s):  
Yuzhou Zhao ◽  
Guangsen Han ◽  
Jing Zhuang ◽  
Zhimeng Li ◽  
Gangcheng Wang ◽  
...  

e16549 Background: Neoadjuvant chemotherapy for patients with locally advanced gastric and gastroesophageal junction adenocarcinoma (GC/GEJC) can improve the overall survival without increasing operation risk. Nowadays, immunotherapy has become a new promising neoadjuvant treatment. Therefore, we intended to evaluate the safety and efficacy of camrelizumab (anti-PD-1 antibody) combined with FOLFOX as the neoadjuvant therapy for patients with locally advanced GC/GEJC who received D2 radical gastrectomy. Methods: Patients who were diagnosed as resectable locally advanced GC/GEJC received the neoadjuvant treatment of camrelizumab and FOLFOX every 2 weeks for 4 cycles. Imaging evaluation was performed in 2-4 weeks after neoadjuvant therapy. Patients who had no progression disease (PD) were recruited. Eligible patients underwent gastrectomy with D2 lymph node dissection through laparotomy or laparoscopic surgery. The primary end points were safety and R0 resection rate. Results: From July 24 2019 to January 31 2020, 15 patients were recruited. The mean age was 57 years. A total of 10(67%) were males and 5(33%) were females. According to AJCC 8th, cT3 and cT4 were confirmed in 7(47%) patients and 8(53%) patients, N1 and N2 in 7(47%) patients and 8(53%) patients, respectively. During operation, intraperitoneal metastases were found in 2 patients. Of the 13 surgeries, only 2 were laparoscopic and the others were laparotomy. The surgical procedures included Roux-en-Y (9, 69.2%), Billroth II (1, 7.7%) and jejunum interposition (3, 23.1%). Thirteen patients underwent gastrectomy with D2 lymph node dissection and all of them were confirmed R0 resection by postoperative pathology results. The mean lymph node yield was 44.1±13.2 nodes, positive lymph node yield was 1.8±2.8 nodes. Duration time of surgery was 186.5±45.5 minutes, mean blood loss was 219.2±109 ml during the operation. Mean hospital stays were 13.2±2.4 days. Only 1 patient experienced grade 3 pneumonia. Neither serious intraoperative complications nor immune-related adverse events both prior and post operation were observed. There was no treatment-related death. Conclusions: Camrelizumab combined with FLOFOX as neoadjuvant treatment for patients with locally advanced GC/GEJC showed acceptable toxicity and promising efficacy with low complications and mortality. Clinical trial information: NCT03939962 .


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 4536-4536
Author(s):  
Ying Liu ◽  
Guangsen Han ◽  
Hongle Li ◽  
Yuzhou Zhao ◽  
Jing Zhuang ◽  
...  

4536 Background: Neoadjuvant chemotherapy has been demonstrated to improve the pathological complete response(pCR) and 5-year survival rate of patients with locally advanced gastric and gastroesophageal junction adenocarcinoma (GC/GEJC). Immunotherapy has become a new promising treatment for advanced GC/GEJC. Therefore, we intended to evaluate the safety and efficacy of Camrelizumab (anti-PD-1 antibody) combined with FOLFOX as the neoadjuvant therapy for patients with locally advanced GC/GEJC. Methods: Eligiblepatients were locally advanced GC/GEJC with clinical stage≥T2 and/or positive lymphoglandula confirmed by endoscopic ultrasonography (EUS) and imaging. They received 4 cycles neoadjuvant therapy which including Camrelizumab(200mg ivgtt D1), FOLFOX(Oxaliplatin 85mg/m2 ivgtt D1, 5-Fu 400mg/m2 iv D1, LV 200mg/m2 ivgtt D1, 5-Fu 2.4mg/m2 CIV 46 hours) every 14 days. Imaging evaluation was performed in 2-4 weeks after neoadjuvant therapy. Patients without progression disease (PD) received D2 radical gastrectomy. The primary endpoint was pCR, the secondary endpoints were R0 resection rate and safety. Results: From July 24 2019 to January 31 2020, 16 patients were eligible. The median age was 57 years (29-72 years). A total of 11(69%) males and 5(31%) females, ECOG PS 0 (n=9, 56%), ECOG PS 1 (n=7, 44%). All the patients completed 4 cycles treatment and none of them was confirmed PD by image. One of the patients refused gastrectomy and withdraw from the study. The other 15 patients underwent operation. Unfortunately, intraperitoneal metastases were confirmed in 2 patients during operation. 13 patients received D2 radical gastrectomy and all of them experienced R0 resection. Among the 13 evaluable patients, 1 patient (8%) was observed pCR, 3 patients (23%) experienced TRG1, 10 patients (77%) achieved stage reduction. Notably, 8 patients (62%) had lymphonodus pCR. The grade 3-4 treatment-related AEs were neutropenia (n=3, 19%), leukopenia (n=2, 13%) and anorexia (n=1, 6%). No serious AEs resulted in termination of treatment. Either severe immune-related AEs or treatment-related death was not observed. Conclusions: Camrelizumab combined with FOLFOX as neoadjuvant regimen in patients with locally advanced GC/GEJC showed promising pCR with good tolerance. Clinical trial information: NCT03939962 . [Table: see text]


2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 231-231
Author(s):  
Lauren Jurkowski ◽  
Aditya Varnam Shreenivas ◽  
Sakti Chakrabarti ◽  
Mandana Kamgar ◽  
James P. Thomas ◽  
...  

231 Background: Both peri-operative chemotherapy and neoadjuvant chemoradiation have been shown to improve outcomes in patients (pts) with LA-GEJ CA compared to surgery alone. Rates of post-operative chemotherapy delivery remain suboptimal. Total neo-adjuvant therapy (TNT) in LA-GEJ CA - induction chemotherapy (IC) followed by concurrent chemoradiation (CRT) - may improve systematic delivery of neoadjuvant therapy and result in favorable clinical outcomes. Methods: We retrospectively reviewed medical records of 135 pts with LA-GEJ CA at our institution between 2/2007 and 11/2019; pertinent clinical data were abstracted with Institutional Review Board approval. Patients treated with IC and curative-intent CRT with ≥40 Gy dose of radiation for adenocarcinoma were included in this analysis (N = 59). Doublet or triplet IC regimens utilizing 5-Flurouracil(5-FU), Cisplatin/Oxaliplatin and Docetaxel were commonly administered while combinations of Carboplatin +Paclitaxel or 5-FU + Oxaliplatin were used in CRT. Clinical complete response (CCR) was defined as metabolic imaging and endoscopic biopsies negative for residual malignancy after completion of TNT. Patients were followed from diagnosis to recurrence and overall survival. Survival probabilities were estimated using the Kaplan-Meier method and compared between groups using a log-rank test. Results: Out of 59 evaluable pts, 69% were clinical stage T3, 71% were node positive. 37 pts (63%) underwent surgery, R0 resection rate was 89% (33/37), pathologic complete response (pCR) rate was 19% (7/37). Among the pts who did not undergo surgery, 41% (9/22) opted to forego surgery since they attained a CCR. For the entire cohort, median Disease-Free Survival (mDFS), median Overall Survival (mOS), and 3-yr OS were 2.4 yrs, 4.7 yrs, and 67% respectively. Pts who did not undergo surgery had a mDFS, mOS, and 3-yr OS of 1.5 yrs, 4.2 yrs, and 59% respectively. Median DFS, mOS, and 3-yr OS of patients who underwent surgery were 3.5 yrs, 5.8 yrs and 72% respectively. Patients who achieved a CCR and opted to forego surgery (N = 9) had a 3 -yr DFS of 42% vs 83% for pts (N = 7) who demonstrated a pCR after curative intent tri-modality therapy. (P = 0.0099) Interestingly, the same group that achieved CCR and opted out of surgery had 3yr OS of 89% vs 83% of those who demonstrated a pCR (p = 0.0042). Conclusions: TNT for pts with LA-GEJ CA is associated with high rates of R0 resection as well as excellent DFS and OS compared to historical controls, warranting prospective evaluation. The remarkable DFS and OS in patients who opted to forego surgery due to achieving CCR is reflective of the local and systemic control rendered by this approach. Careful characterization and close longitudinal follow-up of patients who achieve CCR may help identify a subgroup of LA-GEJ CA pts who may benefit from surgery sparing approaches.


2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 96-96
Author(s):  
M. Ryu ◽  
Y. Choi ◽  
B. Kim ◽  
Y. Park ◽  
H. Kim ◽  
...  

96 Background: The aim of this study was to evaluate feasibility and safety of neoadjuvant docetaxel, oxaliplatin, and S-1 (DOS) chemotherapy in patients with potentially resectable adenocarcinoma of stomach or gastroesophageal junction. Methods: Forty-one patients with clinical stage T3-4N0M0 or T2-4N+M0 determined by CT, endoscopic ultrasonography, and laparoscopy were enrolled between DEC 2008 and MAR 2010. Gastrectomy with D2 lymph node dissection was conducted after 3 cycles of DOS chemotherapy. DOS chemotherapy consists of docetaxel 50 mg/m2 iv (day1), oxaliplatin 100 mg/m2 iv (day1), and S-1 40 mg/m2 po bid (days1-14) at 3 weeks interval. After curative gastrectomy, the patients were given 1 year of adjuvant chemotherapy with S-1 (40 mg/m2 D1-28, every 6 weeks). Results: All patients finished the planned neoadjuvant chemotherapy. Twenty-three (56%) patients achieved a partial response, and the remaining 18 patients had stable disease by CT scan after 3 cycles of DOS chemotherapy. No disease progression was observed during the neoadjuvant chemotherapy. A median 4.7 weeks (range, 4.0-7.6) after the start of the 3rd cycle of DOS chemotherapy, 39 (95%) patients underwent R0 resection with no pathologic residual disease in 4 (10%) patients. Hematologic toxicities were common including grade 4 neutropenia (32%), grade 3 thrombocytopenia (17%), and febrile neutropenia (10%). However, hematologic toxicities were generally transient and manageable. There were no grade 3 or 4 non-hematologic toxicities with frequency > 5% of patients. With all toxicities taken together, 21 (51%) patients experienced grade 3 or 4 toxicities (except grade 3 neutropenia). There was no treatment-related death, and surgical complications included only mild wound problem in 4 (10%) patients. Conclusions: In this study, neoadjuvant DOS chemotherapy could induce a sufficient down-staging and R0 resection of locally advanced gastric cancer with mild and manageable toxicities. A phase III randomized trial is planned for evaluating the benefit of neoadjuvant DOS chemotherapy in patients with locally advanced gastric cancer. [Table: see text]


2005 ◽  
Vol 23 (7) ◽  
pp. 1350-1357 ◽  
Author(s):  
Ralf-Dieter Hofheinz ◽  
Bolko von Gerstenberg-Helldorf ◽  
Frederik Wenz ◽  
Ulrike Gnad ◽  
Uta Kraus-Tiefenbacher ◽  
...  

Purpose To establish the feasibility and efficacy of capecitabine in combination with weekly irinotecan (CAPIRI) with concurrent pelvic radiotherapy (RT) in patients with locally advanced rectal cancer. Patients and Methods Nineteen patients with rectal cancer clinical stage T3-4, Nx received weekly irinotecan 50 mg/m2 (days 1, 8, 15, 22, 29) and two doses of capecitabine (days 1 through 38; dose level [DL] I, 500 mg/m2 bid; DL II, 625 mg/m2 bid) according to phase I methodology. Three-dimensional conformal RT was given to a dose of 50.4 Gy (45 Gy + 5.4 Gy). Results On DL I, no dose-limiting toxicities occurred, whereas diarrhea grade 3 affected three of seven patients on DL II. Twelve patients were treated on DL I and received a median relative dose-intensity of 100% for both drugs. Grade 3 or 4 adverse events were observed in only one of these patients (asthenia grade 3). All patients underwent surgery and R0 resection was achieved in all patients. Pathologic complete remission was observed in four patients and another five patients had only microfoci of residual tumor. Conclusion Preoperative chemoradiotherapy with CAPIRI is feasible and well tolerated. The preliminary efficacy is good, and the tolerability is at least comparable with data for fluorouracil plus irinotecan chemoradiotherapy. Larger phase II trials of the CAPIRI-RT schedule clearly are warranted.


2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 117-117
Author(s):  
Jaffer A. Ajani ◽  
Anghel Adrian Udrea ◽  
Tomasz Sarosiek ◽  
Michael Schenker ◽  
Carys Morgan ◽  
...  

117 Background: Ramucirumab (RAM) is approved for treatment of advanced gastric cancer or gastroesophageal junction adenocarcinoma with disease progression after prior platinum and/or fluoropyrimidine chemotherapy at 8 mg/kg every 2 weeks (Q2W). Previous phase 3 trials indicated that efficacy of RAM correlated with exposure. While the primary objectives of the open-label RAM monotherapy JVDB study were pharmacokinetics and safety, a secondary analysis was conducted on efficacy and safety of the 3 higher exposure regimens vs. the standard regimen. Methods: Patients ( n = 164) were randomized 1:1:1:1 to 4 treatment arms: 8 mg/kg Q2W (Arm 1), 12 mg/kg Q2W (Arm 2), 6 mg/kg every week (Arm 3), and 8 mg/kg Days 1 and 8 (D1D8) every 3 weeks (Q3W) (Arm 4). Treatment-emergent adverse events (TEAEs) were graded by NCI CTCAE v4.0. Tumor response was assessed by RECIST 1.1. Results: Median (months) progression-free survival (PFS) of the 3 arms and overall survival (OS) of 2 arms was increased compared to the standard regimen (Table). Best overall response was partial response (Arm 2, n = 4; Arm 3, n = 2). The majority of patients experienced ≥1 TEAE (81.4%); 39.1% had ≥1 Grade ≥3 event and 26.7% had ≥1 serious event. The most frequent Grade ≥3 events were fatigue (5.6%), abdominal pain (5.05%), hypertension (5.0%), anemia (4.3%), and vomiting (3.7%). Conclusions: Although the study was not powered for statistical comparisons, some trends toward improved efficacy vs. the standard regimen were observed; the greatest median PFS months and OS improvement was 1 month (Arm 2 vs. Arm 1; PFS = 2.50 vs. 1.45; OS = 6.74 vs. 5.68). Despite higher RAM exposures with the experimental regimens, the safety profile is similar to the standard dose regimen, and no unexpected safety findings were observed. Clinical trial information: NCT02443883. [Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16020-e16020
Author(s):  
Ning Liu ◽  
Zimin Liu ◽  
Yanbing Zhou ◽  
Zhaojian Niu ◽  
Haitao Jiang ◽  
...  

e16020 Background: Docetaxel-based neoadjuvant chemotherapy has been suggested to be beneficial in patients with locally advanced gastric and gastro-oesophageal junction cancer (GC/GEJC). And immunotherapy also show promising treatment efficacy for advanced GC/GEJC. Here we compared the safety and efficacy of camrelizumab combined with chemotherapy versus chemotherapy alone as the neoadjuvant therapy for patients with resectable locally advanced GC/GEJC. Methods: Eligible patients diagnosed as resectable locally advanced GC/GEJC were randomized to receive neoadjuvant treatment, in arm A, the patients received FLOT alone (docetaxel 50 mg/m²; oxaliplatin 85 mg/m²; leucovorin 200 mg/m²; 5-FU 2600 mg/m², every 2 weeks), in arm B, the patients received FLOT combined with camrelizumab(camrelizumab 200mg intravenously every 3 weeks). Eligible patients underwent gastrectomy with D2 lymph node dissection. The primary end point of this trial was pCR rate and R0 resection rate, and the secondary end points were ORR,PFS, OS and safety profile. Results: From January 15 2020 to January 15 2021, 24 patients were recruited (11 patients in arm A and 13 patients in arm B). 19 patients had completed planned neoadjuvant treatment for 4 cycles (9 pts in the arm A, 10 ptsin the arm B). Two patients in the arm A were waiting for gastrectomy. This analysis was based on the 17 pts. In the arm A, the median age was 61 years (47-72 years) and a total of 5 males and 4 females, ECOG PS 0 (n = 1), ECOG PS 1 (n = 8). In the arm B, the median age was 63 years (57-71 years) and a total of 9 males and 1 females, all patients with ECOG PS 1. The R0 resection rate was high in arm B compared with arm A (10/10,100% vs. 5/7, 71.4%). No pCR were observed in the two arms. Tumour regression grade were as follows:TRG1 [arm A 0% (0/7), arm B 10% (1/10)], TRG2 [arm A 43% (3/7), arm B 60% (6/10)], TRG3 [arm A 29% (2/7), arm B 30% (3/10)].There was a significantly higher proportion of patients achieved a postoperative ypN0 in the arm B than arm A(60% vs 0%), which had preoperative clinical stage cT3-4N+M0. Postoperative pathologic staging was as follows: ypT1 [arm A 14% (1/7); armB 30% (3/10)]. ypT2 [armA 0% (0/7); armB 30% (3/10)]. ypT3 [arm A 29% (2/7); arm B 20% (2/10)]. ypT4 [armA 29% (2/7); armB 20% (2/10)]. Neither serious intraoperative complications nor immune-related adverse events were observed during perioperation. Treatment-related AEs neutropenia and leukopenia were manageable and there was no treatment-related death. Conclusions: Camrelizumab combined with FLOT showed promising efficacy as neoadjuvant treatment for patients with locally advanced gastric or GEJ adenocarcinoma, with low complications and acceptable toxicity. Clinical trial information: ChiCTR2000030610.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16021-e16021
Author(s):  
Huilai Lv ◽  
Yang Tian ◽  
Chao Huang ◽  
Zhenhua Li ◽  
Ziqiang Tian

e16021 Background: The pathologic complete response (pCR) rate is improved by neoadjuvant therapy in locally advanced ESCC, but occurs less than 10% of patients(pts) with neoadjuvant chemotherapy agents. Immunotherapy has become a new promising treatment. Camrelizumab (anti-PD-1) is standard of care as second-line therapy for advanced ESCC in China. Therefore, we intended to evaluate the efficacy and safety of Camrelizumab combined with albumin paclitaxel and cisplatin as neoadjuvant therapy for pts with locally advanced ESCC. Methods: We retrospectively analysed locally advanced ESCC pts with clinical stage Ⅱ-ⅣA. Eligible pts were aged 18–75 years with no prior any therapy. Pts received 2-4 cycles neoadjuvant therapy which including Camrelizumab (200mg IV q3w), albumin paclitaxel (260 mg/m2 IV q3w) and cisplatin (75 mg/m2 IV q3w). Surgery was performed 4-6 weeks after neoadjuvant therapy. The primary endpoint was pCR, the secondary endpoints were major pathologic response (MPR), R0 resection rate, objective response rate (ORR), disease-free survival (DFS) and safety. Results: From Jul 27 2019 to Sep 26 2020,16 pts were enrolled and available evaluated. 8 pts (50%) had clinical complete response (cCR), and the ORR was 87.5% (14/16). All pts underwent surgery and surgical treatment was not delayed. The pCR was 43.8% (7/16), MPR was 75% (12/16). Notably, R0 resection rate was 100% (16/16). None of 16 pts progressed, the DFS was not yet achieved. The average intraoperative blood loss was 131ml (100-200ml) and the average hospitalization time after operation was 14 days (11-21 days). No patient developed anastomotic leak and other surgical treatment-related toxicity. The grade 1-2 treatment-related AEs were reactive cutaneous capillary endothelial proliferation (RCCEP) (n = 3,18.8%), weakness (n = 2, 12.5%), Myelosuppression (n = 1, 6.2%) and hypothyroidism (n = 1, 6.2%). No serious AEs resulted in termination of treatment, and treatment-related death was not observed. Conclusions: The addition of camrelizumab to albumin paclitaxel and carboplatin was demonstrated encouraging clinical efficacy and acceptable safety as neoadjuvant therapy, and might be a favorable option for pts with locally advanced ESCC. Further registered clinical trials are expected.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Yuan Tian ◽  
Qun Zhao ◽  
Yong Li ◽  
Liqiao Fan ◽  
Zhidong Zhang ◽  
...  

Purpose. This paper is aimed at comparing the short-term efficacy of the combination of docetaxel, oxaliplatin, and capecitabine (DOX) with the combination of oxaliplatin and capecitabine (XELOX) as neoadjuvant chemotherapy regimens for the treatment of patients with resectable gastric or gastroesophageal junction adenocarcinoma. Methods. A total of 300 patients aged 20-60 years with resectable gastric or gastroesophageal junction adenocarcinoma who were evaluated with cT3/4Nany were randomly assigned into 3 groups: DOX group ( n = 100 , treated with neoadjuvant DOX plus adjuvant XELOX), XELOX group ( n = 100 , treated with perioperative XELOX), and surgery group ( n = 100 , treated with adjuvant XELOX). Results. A total of 93, 92, and 95 patients were enrolled in the DOX, XELOX, and surgery groups, respectively. The pathological complete response (pCR) rate was 16.1% in the DOX group and 4.3% in the XELOX group ( P = 0.008 ). There were 56 (61.3%) patients in the DOX group who presented with surgical complications, 22 (23.9%) patients in the XELOX group, and 37 (38.9%) patients in the surgery group. The most common grade 3-4 adverse events in these three groups were neutropenia (32.3%, 30.4%, and 21.1%), leucopenia (21.5%, 22.8%, and 15.8%), nausea (15.1%, 16.3%, and 12.6%), and fatigue (10.8%, 7.6%, and 8.4%). Conclusions. Neoadjuvant DOX is an effective and feasible regimen and might represent an option for young and middle-aged patients with locally advanced, resectable gastric or gastroesophageal junction adenocarcinoma.


Sign in / Sign up

Export Citation Format

Share Document