On the development of cancer in gastric ulcer and ulcer symptoms in gastric cancer.
D006801:Humans; D009369:Neoplasms; D010437:Peptic Ulcer / Q000150:complications*; D013274:Stomach Neoplasms; D013276:Stomach Ulcer; D014456:Ulcer
PEPTIC ULCER/complications; STOMACH/neoplasms