title: The challenge of colorectal cancer.
mesh_terms: D003110:Colonic Neoplasms / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*; D006801:Humans; D007167:Immunotherapy; D008722:Methods; D012004:Rectal Neoplasms / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*