1. Recent developments in pain management and regulation;Angarola;APS Bulletin,1994
2. State cancer pain initiatives;Dahl;J Pain Symptom Manage,1993
3. Controlled substances and pain management: changes in knowledge and attitudes of state medical regulators;Gilson;J Pain Symptom Manage,2001
4. Government regulation influences on opioid prescribing and their impact on the treatment of pain of nonmalignant origin;Hill;J Pain Symptom Manage,1996
5. International Opium Convention of 1925, League of Nations Treaties Series, Vol 81, 317: Convention of 1931 for Limiting the Manufacture and Regulating the Distribution of Narcotic Drugs, League of Nations Treaty Series 139:301, 1931.