Clinic Urine Screen
Results from clinic urine drug screens (QuickTox panel; LabCorp) were logged at baseline by study staff. Substances tested included opiates, cocaine, methamphetamine, tetrahydrocannabinol, amphetamine, phencyclidine, benzodiazepine, barbiturates, methadone, oxycodone, methylenedioxymethamphetamine, buprenorphine, and fentanyl.