CANCER AND DISEASES PRECEDING CANCER OF THE STOMACH.
D005756:Gastritis; D006801:Humans; D009369:Neoplasms / Q000209:etiology*; D011127:Polyps; D013274:Stomach Neoplasms; D013276:Stomach Ulcer
GASTRITIS; NEOPLASM ETIOLOGY; POLYPS; STOMACH NEOPLASMS; STOMACH ULCER