[Frequency of appearance and morbiden characteristics of non-polypoid formation of large bowel].
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000473:pathology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged