title: Prospective and retrospective studies for long years on the cancerous change from the gastric ulcer with fiberscope biopsy and gastrocamera pictures.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D002471:Cell Transformation, Neoplastic; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012189:Retrospective Studies; D013270:Stomach / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*; D013276:Stomach Ulcer / Q000473:pathology*; D013997:Time Factors