Report from a WADA-accredited laboratory or other WADA-approved testing entity that identifies in a doping control sample the presence of a prohibited substance or its metabolites or markers or evidence of the use of a prohibited method. An adverse analytical finding does not necessarily lead to an anti-doping rule violation, since an athlete may have a Therapeutic Use Exemption for this particular substance. An adverse analytical finding may also correspond to a measurement performed on an athlete as part of a longitudinal study.