1. The clinical evaluation of morphine and its substitutes as analgesics;Lasagna;Pharm. Rev.,1964
2. Oral pentazocine;Forrest;Ann. Int. Med.,1974
3. Codeine and its alternates for pain and cough relief. I. Codeine, exclusive of its antitussive action;Eddy;Bull. W.H.O.,1968
4. Effect of dextro-propoxyphene, meperidine and codeine on post-operative pain;Bergen;J.A.M.A.,1960
5. The addiction potential of oxycodone (Percodan);Bloomquist;Calif. Med.,1963