Assistant Professor , Canadian Memorial Chiropractic College

Professor, Department of Research, Canadian Memorial Chiropractic College

Assistant Professor, Department of Family & Community Medicine, University of Toronto

Chiropractic Program Lead, Unity Health Toronto, St. Michael's Hospital site, Department of Family and Community Medicine

Professor (Research)

Departments of Orthopedic Surgery

Occupational and Industrial Orthopedic Center

NYU Grossman School of Medicine

New York University, New York, NY, USA

Professor and Graduate Chair of Epidemiology

Associate Chair, Office of Public Health Studies

Thompson School of Social Work and Public Health at the University of Hawai`i, Mānoa, Honolulu, Hawaii, USA

President, World Spine Care

Clinical Professor, Department of Neurology, University of California, Irvine California

Adjunct Professor, Ontario Tech University, Toronto, Ontario, Canada