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(A)He argues that anti-doping authorities have not adequately defined and publicized how they arrived at the criteria usedto determine whether or not a test result is positive.
(B)Some scientists believe that accepting “legal limits” of specific metabolites without such rigorous verification goesagainst the foundational standards of modern science.
(C)These were just a few in a long line of cases in which competitors had been accused of using performance-enhancingsubstances.
(D)Drug testing should not be exempt from the scientific principles and standards that apply to other biomedical sciences.