American Cancer Society colorectal health check program.
D000570:American Cancer Society; D003110:Colonic Neoplasms / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening; D009780:Occult Blood; D012004:Rectal Neoplasms / Q000517:prevention & control*; D014481:United States; D014837:Voluntary Health Agencies