Institution: | 1. Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada;2. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada;3. Division of Thoracic Surgery, Department of Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada;1. Department of General and Vascular Surgery, Gundersen Health System, La Crosse, WI;2. American Board of Surgery, Philadelphia, PA;3. Accreditation Council for Graduate Medical Education, Chicago, IL;4. Division of Vascular Surgery, University of Texas Southwestern Medical Center, Dallas, TX;1. Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA;2. Department of Public Health Sciences, The Pennsylvania State University, College of Medicine, Hershey, PA |