Drug abuse testing: issues and opportunities.
D001322:Autoanalysis; D003625:Data Collection; D003951:Diagnostic Errors; D003955:Diagnostic Tests, Routine / Q000592:standards*; D005069:Evaluation Studies as Topic; D006801:Humans; D007755:Laboratories, Hospital / Q000706:statistics & numerical data*; D010934:Planning Techniques; D011357:Product Line Management / Q000458:organization & administration*; D011786:Quality Control; D015813:Substance Abuse Detection / Q000191:economics*; D014481:United States