Sentence examples for by exclusion of controls from inspiring English sources
Unlisted telephone numbers were randomly generated to prevent selection bias by exclusion of controls in higher socioeconomic categories.
Expression profiling data were RMA normalized with "affy" package of Bioconductor, followed by exclusion of spike-in controls (AFFX) and mixed cross-hybridization (_x) probe sets.
In addition, it was controlled by exclusion of the asymptomatic food handlers and efficient disinfection based on prompt epidemiological investigation.
None of the risk estimates were changed by exclusion of the 22 cases and 38 controls who had developed a cancer at a site other than the stomach before enrolment in the cohort.
Negative controls were prepared by exclusion of the primary antibody.
In all cases pedigree information was used to control for genetic background by exclusion of samples sharing relatives within two generations.
To ascertain the specificity of the antibody immunoreactivity, a negative control was carried out by exclusion of the primary antibody.
However certain studies were limited by the lack of a suitable control group [ 6] or by exclusion of deployed personnel who had left the Armed Services [ 7, 8].
Cell viability was assessed by exclusion of trypan blue dye.
Viability of sorted cells was 55 65% as tested by Trypan blue dye exclusion (Invitrogen) or by exclusion of PI.
