[THE PROBLEM OF THE ULCER-CANCER OF THE STOMACH].
D009369:Neoplasms / Q000209:etiology*; D013274:Stomach Neoplasms; D013276:Stomach Ulcer; D014456:Ulcer
NEOPLASM ETIOLOGY; STOMACH NEOPLASMS; STOMACH ULCER
EL PROBLEMA DE LA 'ULCER-C'ANCER DE EST'OMAGO.