Use of organ-sparing treatments varies internationally.
D001003:Anal Canal / Q000601:surgery; D001005:Anus Neoplasms / Q000601:surgery / Q000628:therapy*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000601:surgery / Q000628:therapy*; D007825:Laryngectomy / Q000706:statistics & numerical data