title: False-negative results with Emit amphetamine confirmation kit.
authors.forename: H
authors.initials: H
authors.lastname: Morland
authors.forename: A
authors.initials: A
authors.lastname: Smith-Kielland
mesh_terms: D000662:Amphetamines / Q000652:urine*; D017248:Enzyme Multiplied Immunoassay Technique; D005188:False Negative Reactions; D006801:Humans
chemical_list: D000662:Amphetamines