Observations on Blood Group Distribution in Peptic Ulcer and Gastric Cancer

Abstract
There is increasing evidence that blood group substances play a rôle in the causation of disease or in the protective mechanism against it. This paper records the special liability for patients of blood group O to develop stomal ulceration. Other data studied failed to confirm previous work suggesting that in gastric ulceration or neoplasm blood group A was a characteristic of an antral lesion.