Participating Research Facility, Fort Worth, Texas, United States
Massachusetts General Hospital, Boston, Massachusetts, United States
Cleveland Clinic, Cleveland, Ohio, United States
Veterans Administration Medical Center, Albany, New York, United States
Kingston Health Sciences Centre, Kingston, Ontario, Canada
Massachusetts General Hospital, Boston, Massachusetts, United States
Salford Royal Hospital NHS Foundation Trust, Salford, Manchester, United Kingdom
University of Virginia Medical Center, Charlottesville, Virginia, United States
University of Virginia Health System Medical Center, Charlottesville, Virginia, United States