1 National Center for the Medical Consequences of Spinal Cord Injury, James J Peters Veterans Affairs Medical Center, Bronx, NY, USA.
2 Department of Medicine, Division Physical Medicine & Rehabilitation, Autonomic Research Unit, International Collaboration On Repair Discoveries (ICORD), Spinal Cord Program, GF Strong Rehabilitation Centre, University of British Columbia, Vancouver, British Columbia, Canada.
3 University of Western Ontario, London, Ontario, Canada.
4 Clinic for Spinal Cord Injuries, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.