Talwalkar, P G1987-09-012009-05-301987-09-012009-05-301987-09-01Talwalkar PG. Comparative efficacy of cimetidine & ranitidine. Journal of the Association of Physicians of India. 1987 Sep; 35(9): 670http://imsear.searo.who.int/handle/123456789/85291engCimetidine --therapeutic useDuodenal Ulcer --drug therapyHumansRanitidine --therapeutic useStomach Ulcer --drug therapyComparative efficacy of cimetidine & ranitidine.Comparative Study