1. The epidemiology of adverse drug reactions. A review and perspective;Gardner;Johns Hopkins Med J,1970
2. Short-term intense surveillance of adverse drug reactions;Gray;J Clin Pharmacol,1973
3. Predisposing factors in adverse reactions to drugs;Hurwitz;Brit Med J,1969
4. Studies on the epidemiology of adverse drug reactions. III. Reactions in patients on a general medical service;Seidl;Johns Hopkins Med J,1966