Risk factor for carcinoma stomach are all, EXCEPT:: (A) Blood group A, (B) Postgastrectomy, (C) Adenomatous polyp, (D) Atrophic gastritis
Answer is A. Impoant quotes (Maingot's 10/e, Page 1007): In several large studies from the scandinan countries, it was found that there is no correlation between gastric cancer and blood group A. Ref: Maingot's 10/e, Page 1007.