title: Dedication to Dr. Christopher J. O'Brien.
mesh_terms: D000046:Academic Medical Centers / Q000266:history; D001315:Australia; D002173:Cancer Care Facilities / Q000266:history; D006258:Head and Neck Neoplasms / Q000266:history* / Q000601:surgery; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008495:Medical Oncology / Q000266:history; D009493:Neurosurgery / Q000266:history*; D016522:Oncology Service, Hospital / Q000266:history*; D012955:Societies, Medical / Q000266:history