Falsely negative urine drug assay results due to filtration.
Mitchell
J D
JD
Perrigo
B J
BJ
Mason-Daniel
V A
VA
D017248:Enzyme Multiplied Immunoassay Technique / Q000592:standards; D005188:False Negative Reactions; D005374:Filtration; D006801:Humans; D011933:Reagent Kits, Diagnostic / Q000592:standards; D014116:Toxicology; D014556:Urine / Q000737:chemistry*
D011933:Reagent Kits, Diagnostic