1. Resident and Research Fellow, Division of Neurosurgery, Barrow Neurological Institute.
2. Associate Professor, Dept of Anesthesiology, UCSD School of Medicine.
3. J. N. Harbor Chairman, Division of Neurosurgery, Barrow Neurological Institute.
4. Associate Clinical Professor, Department of Anesthesiology, UCSD.
5. Medical Director, Stroke Unit, Division of Neurology, Barrow Neurological Institute.
6. Chairman, Division of Neuropathology, Barrow Neurological Institute.