[Controlled study of hemoccult in the diagnosis of colorectal tumors].
D003110:Colonic Neoplasms / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D005188:False Negative Reactions; D006801:Humans; D008403:Mass Screening; D009780:Occult Blood; D012004:Rectal Neoplasms / Q000517:prevention & control*
Etude contrôlée de l'Hémoccult dans le diagnostic des tumeurs colorectales.