Foreword.
Johnstone
Peter A S
PA
D001003:Anal Canal / Q000503:physiopathology / Q000601:surgery; D001005:Anus Neoplasms / Q000188:drug therapy* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000473:pathology / Q000503:physiopathology; D002648:Child; D002986:Clinical Trials as Topic / Q000379:methods / Q000639:trends; D006801:Humans; D009362:Neoplasm Metastasis; D011351:Proctoscopy / Q000706:statistics & numerical data / Q000639:trends