1. Management of cancer pain with parenteral medication;Beaver;JAMA,1980
2. Analgesic studies of codeine and oxycodone in patients with cancer: 1. Comparisons of oral with intramuscular codeine and of oral with intramuscular oxycodone;Beaver;J Pharmacol Exp Ther,1978
3. Drug use in the United States in 1981;Baum;JAMA,1984
4. Combination analgesics;Beaver;Am J Med,1984
5. Comparison of the analgesic effect of acetaminophen and codeine and their combination in patients with postoperative pain;Beaver;Clin Pharmacol Ther,1978