Examinations are necessary for assessment of student proficiency in medical education, but comparison of achievement across different cohorts in different tests is challenging.
Comparing the relative utility of diagnostic tests is challenging when available datasets are small, partial or incomplete.
Non alcoholic fatty liver disease (NAFLD) is associated with increased risk of type 2 diabetes and chronic liver disease but identifying patients who have NAFLD without resorting to expensive imaging tests is challenging.
Membership is still determined by intelligence testing -- even after the worth of such tests was challenged.
The serotypes of 204 clinical samples initially determined at the time of virus isolation by neutralization tests were challenged by VP1 nucleotide sequencing.
As very high cycle fatigue testing is challenging in many regards, a special high-frequency four-point bending test rig was developed, set up and validated previously.
However, due to the heterogeneity of clinical manifestation and the non-pathognomonic pattern of neuroimaging data, recognition of the disease before the genetic test is challenging.
However, selecting which of the other many variants to test is challenging.
However, choosing the correct test is challenging for those without a background in bioinformatics.
Chlamydia antimicrobial sensitivity testing is challenging, with few laboratories conducting it today.
