1. Guidelines for treatment: Duragesic;Janssen Pharmaceutica,1992
2. The treatment of cancer pain;Foley;N Engl J Med,1985
3. Practical aspects of pain control in the patient with cancer;Portenoy;CA,1988
4. Commentary: equianalgesic dose ratio of intramuscular/oral morphine, 1:6 vs 1:3;Kaiko,1986
5. Transdermal fentanyl: long term analgesic studies;Simmonds;J Pain Symptom Manage,1992