Hair analysis in drug screening.
D003416:Criminal Law; D006197:Hair / Q000032:analysis*; D006801:Humans; D009787:Occupational Medicine / Q000592:standards; D011863:Radioimmunoassay / Q000191:economics; D015813:Substance Abuse Detection / Q000191:economics / Q000592:standards; D013997:Time Factors; D014481:United States