A French doctor operates a patient by colonoscopy at the Ambroise Pare hospital in Marseille
A French doctor operates a patient by colonoscopy at the Ambroise Pare hospital in Marseille, southern France on March 25, 2008. REUTERS/Jean-Paul Pelissier (FRANCE) – RTR1Z270
Esta imagen está asociada a: Los programas de cribado de cáncer de colon podrían salvar 3.600 vidas al año