The main advantage of the approach we used is that it does not require any active task to be performed, therefore its results are not influenced by possible between-group differences related to impairment and disability or to eye movements (which require an accurate monitoring when dealing with visual stimulations).
While the readings are usually fairly accurate, true values are influenced by possible offsets between the plane of incidence, physical axes of the elements, and the instrument scales.
Meningococcal factor H binding protein (fHbp) was printed as a positive control for interaction with human factor H. Each S. aureus protein was printed in 16 replicates all over the slide in a random fashion to minimize detection of false-positives that might occur by possible contamination between adjacent spots.
Under this situation, H9N2 viruses might have gradually acquired the ability to replicate in mammals by means of selection pressure created by possible transmission between pigs and chickens.
Primary end point is progression-free survival, to avoid confounding by possible crossover between two arms and the sample size is 200 patients with EGFR mutations.
Bias introduced by possible differences between worksites, might have been prevented if a randomization at the level of the individual could have been performed.
A "green chemistry" approach would incorporate considerations of environmental fate and effects in product formulation, though this may be complicated by possible incompatibility between desirable criteria for intended product use and environmental protection.
Taking this into account, the evaluation of Anopheles exposure based on the immunogenicity of WSE could be skewed and/or overestimated by possible cross-reactivity between common epitopes on immunogenic salivary proteins between mosquito species.
Nevertheless, the use of linkage maps for direct mapping is limited by the number of genes involved in the resistance, and/or by possible epistatic interaction between them.
Analysis of covariance (ANCOVA) was used to compare the mean differences in electrolyte levels after adjustment by possible confounding factors between DM subjects with macrovascular complications and those without macrovascular complications.
Furthermore, conflicting results about the predictive role of EGFR gene copy number could be explained by possible biological differences between early (first line or maintenance) vs late (second and third line) settings.
