<prompt> Risk factor for carcinoma stomach include all of the following, exceptBlood group AAtrophic GastritisDuodenal Peptic ulcerPaial Gastrectomy  <response>: Risk factors are:Long-term ingestion of high concentration of nitratesH.pyloriIntestinal metaplasia in patients with atrophic gastritisGastric ulcers and adenomatous polypsMenetriers diseasePatients with blood group A have a higher incidence of Ca stomach than blood group ONote: duodenal ulcers are not associated with gastric cancer.Ref: Harrisons 18e p766 