The phrase "ancillary sample" is correct and usable in written English.
It can be used in contexts where additional or supplementary samples are needed for analysis or research purposes.
Example: "In our study, we collected an ancillary sample to support our primary data findings."
Alternatives: "supplementary sample" or "additional sample".
Descriptive statistics were used to characterize the ancillary study sample and to compare our sample with the main Look AHEAD trial with respect to relevant demographic and medical history variables.
QuickGene provided greater reproducibility and higher DNA yields for the high biomass samples, but still required ancillary equipment for sample preparation.
In sum, for management purposes, a subsidy program needs not only a system for generating descriptive statistics from data flowing in from eligibility determinations and subsidy payments, but should also collect ancillary data from sample surveys of workers and firms, to answer questions that go beyond simple descriptions of subsidies paid and their recipients.
Furthermore, the preliminary diagnosis enables collection of additional samples for ancillary testing, such as flow cytometry in a patient with monotonous lymphocytes on in-room cytology assessment.
These efficiency variance bounds indicate that the propensity score is ancillary for the "verify-in-sample" case, but is not ancillary for the "verify-out-of-sample" case.
Often, ancillary molecular testing of these samples is required for further diagnosis, risk stratification, and treatment planning, particularly for cancer samples.
"Once lost, physical specimens (i.e., historic biological samples) and the ancillary data associated with them can never be regained".
At enrollment, subjects were offered participation in an ancillary study that collected blood samples at three time points (study entry, 24 28 and 34 38 weeks' gestation).
Also, formally tracking the samples used for ancillary analysis would facilitate planning and executing future, related studies that wish to leverage "sister" specimen vials.
