[Clinical study of gastric tumor (especially reference to early cancer)].
D000328:Adult; D000367:Age Factors; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012737:Sex Factors; D013272:Stomach Diseases / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000473:pathology