Statistical observation on the gastric polyp.
D000328:Adult; D000368:Aged; D005260:Female; D005773:Gastroscopy; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D011127:Polyps / Q000453:epidemiology*; D013274:Stomach Neoplasms / Q000453:epidemiology* / Q000473:pathology