[ON THE PROBLEM OF CANCEROUS DEGENERATION OF ULCERS].
D009369:Neoplasms / Q000175:diagnosis* / Q000209:etiology*; D013274:Stomach Neoplasms; D013276:Stomach Ulcer; D014456:Ulcer
NEOPLASM DIAGNOSIS; NEOPLASM ETIOLOGY; STOMACH NEOPLASMS; STOMACH ULCER
ZUR PROBLEMATIK DES ULCUSCARCINOMS.