Leadership Roles

  1. President and CEO, Mayo Clinic


  1. Minnesota


  1. Neurology


  1. Other Dalhousie University
  2. MD Dalhousie University
  3. Internship - Rotating Internship Royal Columbian Hospital
  4. Resident - Internal Medicine Dalhousie University
  5. Fellow - Neurology Royal College of Physicians and Surgeons of Canada
  6. Chief Resident - Internal Medicine Dalhousie University
  7. Resident - Neurology Dalhousie University
  8. Resident - Neurology University of Western Ontario
  9. Resident - Neuropathology University of Western Ontario
  10. Resident - Neuroimmunology Laboratory, Dr. G.C. Ebers University Hospital, London, Ontario
  11. Centennial Fellow - Centennial Fellow; Pathology, Medical Research Council of Canada, Dr. B. Benacerraf and Dr. M.I. Greene Harvard Medical School
  12. Research Fellowship - Pathology Harvard Medical School
  13. Research Fellowship - Neurology Massachusetts General Hospital, Harvard University
  14. Other - Neurology; Harvard Medical School, Nuclear Magnetic Resonance, Dr. J.B. Martin Massachusetts General Hospital

Academic rank

  1. Professor of Neurology

Professional Highlights

  • Editor-in-Chief, Neurology (journal of the American Academy of Neurology), 2007-present
  • Chair, Science Committee, American Academy of Neurology, 2006


  • Multiple sclerosis clinical trials


See a listing of publications on PubMed, a service of the National Library of Medicine.


See a description of research activities.