title: Practical considerations in the interpretation of urine drug screens.
authors.forename: G L
authors.initials: GL
authors.lastname: Summer
mesh_terms: D002855:Chromatography, Thin Layer; D003404:Creatinine / Q000652:urine; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D013287:Illicit Drugs / Q000652:urine*; D007124:Immunoenzyme Techniques; D011237:Predictive Value of Tests; D011863:Radioimmunoassay
chemical_list: D013287:Illicit Drugs; D003404:Creatinine