Cancer of the colon and rectum: rectal cancer in Mexico.
D000328:Adult; D000368:Aged; D005502:Food; D006801:Humans; D008800:Mexico; D008875:Middle Aged; D011379:Prognosis; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology / Q000601:surgery; D013997:Time Factors