Membership:
American Association of Neurological Surgeons (active member 1997-).
American Epilepsy Society. 1997-
American Society for Neural Transplantation and Repair. 1996-
Fellow Royal College of Surgeons of Canada.1996-
Hawaii Association of Neurological Surgeons (treasurer). 1997-
International Brain Research Organization. 1990
Society for Neuroscience. 1990-