Changing measurement instrument at follow-up a potential source of error

1980 ◽  
Vol 5 (2) ◽  
pp. 265-273 ◽  
Author(s):  
Timothy Cahn ◽  
Jeffrey R. Cram
Keyword(s):  
Measurement Instrument ◽  
Potential Source ◽  
Source Of Error

Echocardiographic Study of Premature Infants

PEDIATRICS ◽  
1984 ◽  
Vol 73 (6) ◽  
pp. 883-883
Author(s):  
GREGORY L. JOHNSON ◽  
Albert B. Chandler
Keyword(s):  
Premature Infants ◽  
Multicenter Study ◽  
Aortic Root ◽  
Leading Edge ◽  
Potential Source ◽  
Echocardiographic Study ◽  
Edge Method ◽  
American Society ◽  
Source Of Error

In Reply.— Levine has correctly pointed out an important potential source of error in performing echocardiographic measurements in small infants. Measurements of aortic root dimension in the multicenter study we reported were, indeed, performed utilizing the outer-to-inner (ie, leading edge) method as recommended by the American Society of Echocardiography and noted in the methods portion of our manuscript. Due to the reduction in figure size associated with publication, our figure 1 (Pediatrics 1984;72:865) appears, at first glance, to demonstrate inner-to-inner measurement as Levine points out.

In situ hybridization to lampbrush chromosomes: a potential source of error exposed

1980 ◽  
Vol 41 (1) ◽  
pp. 115-123
Author(s):  
H.G. Callan ◽  
R.W. Old
Keyword(s):  
Lampbrush Chromosome ◽  
Single Pair ◽  
Lampbrush Chromosomes ◽  
Triturus Cristatus ◽  
Rna Transcripts ◽  
Potential Source ◽  
Source Of Error ◽  
Simple Sequence ◽  
Do So

Denatured 3H-labelled DNAs containing Xenopus or human globin sequences hybridize to RNA transcripts on a single pair of lateral loops on lampbrush chromosome IX of Triturus cristatus carnifex, and to no other loops on this chromosome or the rest of the complement. However they do so, not because of the globin sequences in the probes, but rather because the plasmids from which the probes were prepared were constructed with G.C homopolymer tails. Simple sequence poly d(C/G)n probes also hybridize with RNA transcripts on this same pair of loops, and with no others.

Theophylline Plasma Concentrations and Silicone Central Venous Catheter: A Potential Source of Error

DICP ◽  
1990 ◽  
Vol 24 (3) ◽  
pp. 324-324
Author(s):  
Carles Triginer ◽  
Jordi Rello ◽  
José M. Sánchez ◽  
Alvar Net
Keyword(s):  
Central Venous Catheter ◽  
Plasma Concentrations ◽  
Venous Catheter ◽  
Central Venous ◽  
Potential Source ◽  
Source Of Error

Enzymatic D(-)-lactate measurement: a potential source of error.

1986 ◽  
Vol 32 (11) ◽  
pp. 2100-2101 ◽  
Author(s):  
J E Buttery ◽  
P R Pannall
Keyword(s):  
Potential Source ◽  
Lactate Measurement ◽  
Source Of Error

Potential Source of Error in Fluorometric Analysis of Dopamine

1974 ◽  
Vol 20 (7) ◽  
pp. 915-915 ◽  
Author(s):  
Robert D Greenland ◽  
I Arthur Michaelson
Keyword(s):  
Potential Source ◽  
Fluorometric Analysis ◽  
Source Of Error
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