Methods (italic)a(/italic) and (italic b(/italic) require an estimate of cigarette equivalent exposure for ETS as well as assumptions on the cigarette equivalent dose to target cells from ETS and on the comparability of lung cancer risk per unit dose from smokers and nonsmokers.
From an international perspective, the comparability in terms of age was somewhat reduced because after the grade selection, age was not a relevant criterion anymore.
Firstly, as discussed above, we could not obtain peripheral and cord blood, amniotic fluid and urine samples from every patient, hampering the comparability of pro-protein levels among different samples.
Most findings presented here derive from PCR-based studies, the comparability of which depends on the quality of the biological specimens (bile, stone, or tissue biopsies; fresh, fixed, or frozen), the strategy chosen for Helicobacter detection, and potential problems such as contamination and the presence of Taq polymerase inhibitors.
However, the biological validity of the interactions inferred from transcriptional analysis depends on the comparability of gene expression results from the organisms involved.
Furthermore, the differing participant recruitment mode with patients not being recruited from specialized headache ambulances, but from general population, potentially limits the comparability to other investigations.
Aim of the study was to determine the comparability of data from an EMR and from an SRP, to determine whether the use of SRP data for quality assessment is justified in general practice.
If the results obtained from the quality comparability studies and non-clinical in vitro studies are not satisfactory, an in vivo animal study should be considered to provide complementary information.
In line with the perceived sensitivity of the data it was felt that the comparability resulting from the central database would generate political sensitivities within the participating hospitals, especially with regard to some projects.
Since MetAnalysis and WEasyMA can only analyze data from two-by-two tables, the comparability assessments were limited to one data set [ 8].
