[Cancer of the sigmoid and rectum].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms; D012737:Sex Factors; D012811:Sigmoid Neoplasms
Consideraciones sobre cáncer de colon sigmoideo y recto.