Malignancy of colon and rectum in patients under 20 years of age.
D002648:Child; D003110:Colonic Neoplasms; D007223:Infant; D009369:Neoplasms; D012004:Rectal Neoplasms; D012007:Rectum
COLON/neoplasms; NEOPLASMS/in infancy and childhood; RECTUM/neoplasms