Shop Print Media, 92% Polyester / 8% Spandex, Submucosal Lifting Agent, 50 Foot Length, Burton Medical®, Single Patient Use, 25 mg, For Calibration and Validation of Drugs of Abuse Enzyme Immunoassays for the Detection of Amphetamines, Barbiturates, Benzodiazepines, Cocaine Metabolites, Methadone, Methaqualone, Morphine, Phencyclidine and Propoxyphene in Human Urine