The Medical Association of Nippon Medical School
, The Japanese Association for the Surgery of Trauma
, Japanese Association for Acute Medicine, Kanto Branch
, The Japanese Congress of Neurological Surgeons
, The Japan Society of Neurotraumatology
, The Japanese Society on Surgery for Cerebral Stroke
, The Japan Stroke Society
, The Japanese Society for Neuroendovascular Therapy
, The Japan Neurosurgical Society
, Japanese Association for Acute Medicine
, The Japanese Society of Intensive Care Medicine