1. Schedules of controlled substances: rescheduling of buprenorphine from Schedule V to Schedule III;Department of Justice Drug Enforcement Administration;Federal Register,2002
2. Schedules of controlled substances: placement of tramadol into Schedule IV;Department of Justice Drug Enforcement Administration;Federal Register,2014
3. Schedules of controlled substances: placement of butorphanol Into Schedule IV;Department of Justice Drug Enforcement Administration;Federal Register,1997
4. Schedules of controlled substances: rescheduling of hydrocodone combination products from Schedule III to Schedule II;Department of Justice Drug Enforcement Administration;Federal Register,2014