Managing Cancer Pain: Basic Principles and Invasive Treatments Kenneth A. Marshall, M.D. Mayo Clinic Proceedings Volume 71, Issue 5, Pages 472-477 (May 1996) DOI: 10.4065/71.5.472 Copyright © 1996 Mayo Foundation for Medical Education and Research Terms and Conditions
Fig. 1 Analgesic ladder developed by World Health Organization for management of cancer pain. Mayo Clinic Proceedings 1996 71, 472-477DOI: (10.4065/71.5.472) Copyright © 1996 Mayo Foundation for Medical Education and Research Terms and Conditions