| Institution: | 2. Division of Trauma, Emergency Surgery, and Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts;3. Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts;4. Department of Surgery, Brigham and Women''s Hospital, Harvard Medical School, Boston, Massachusetts;1. Department of Neurosurgery, Helsinki University Central Hospital, Helsinki, Finland;2. Department of Neurosurgery, Umberto I General Hospital, Università Politecnica delle Marche, Ancona, Italy;1. Providence Cancer Center, Providence Portland Medical Center, Portland, Oregon, USA;2. Gastrointestinal and Minimally Invasive Surgery Division, The Oregon Clinic, Portland, Oregon, USA |
