system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Risk factor for development of gastric Ca
assistant
The correct answer is  Risk factors are:Long-term ingestion of high concentration of nitrates.H.pyloriIntestinal metaplasia in patients with atrophic gastritis.Gastric ulcers and adenomatous polyps.Menetrier's disease.Patients with blood group A have a higher incidence of Ca stomach than blood group O.Note: duodenal ulcers are not associated with gastric cancer.