BC Cancer Agency and Vancouver General Hospital, Vancouver, British Columbia, Canada
St.Paul's Hospital/Providence Health Care, Vancouver, British Columbia, Canada
Medical Rapid Access Spine Clinic, Vancouver, British Columbia, Canada
Vancouver General Hospital, Vancouver, British Columbia, Canada
Vancouver Hospital, Vancouver, British Columbia, Canada
Children's and Women's Health Centre of British Columbia, Vancouver, British Columbia, Canada
Wetaskiwin Lung Laboratory, Wetaskiwin, Alberta, Canada
Lion's Gate Hospital, North Vancouver, British Columbia, Canada
University of Alberta Hospital, Edmonton, Alberta, Canada
University of Alberta Hospital, Edmonton, Alberta, Canada
Ohio State University, Division of Stroke, Columbus, Ohio, United States
Marshfield Clinic, Department of Neurology, Marshfield, Wisconsin, United States
Metrohealth Medical Center, Cleveland, Ohio, United States