Prevalence of rectal and lower sigmoidal adenomatous polyps in the normal adult population.
D018256:Adenomatous Polyps; D003110:Colonic Neoplasms; D011127:Polyps; D015995:Prevalence; D012004:Rectal Neoplasms; D012007:Rectum
COLON/neoplasms; POLYPI; RECTUM/neoplasms