1. Opioids for chronic cancer and noncancer pain: a survey of state medical board members;Joranson;Fed Bull,1992
2. Cures and control: panaceas and pana-pathogens;Szasz,1992
3. Opioid therapy for chronic non-malignant pain: a review of the critical issues;Portenoy;J Pain Symptom Manage,1996
4. Drug addiction and drug abuse;Jaffe,1985
5. Opioid tolerance and responsiveness: research findings and clinical observations;Portenoy,1994