1. Birmingham VA Medical Center; Department of Medicine; Faculty Office Tower 805B 510 20th Street South Birmingham AL USA 35294
2. Minneapolis VA Medical Center and University of Minnesota; Department of Medicine; One Veterans Drive Minneapolis MN USA 55417
3. Southlake Regional Health Centre; 43 Lundy's Lane Newmarket ON Canada L3Y 3R7
4. University of Toronto; Department of Health, Policy, Management and Evaluation; 60 Murray St., Suite 2-029 Toronto ON Canada M5T 3L9
5. The University of Texas, M.D. Anderson Cancer Center; Department of General Internal Medicine; 1515 Holcombe Blvd Unit 1465 Houston TX USA 77030
6. University of Ottawa; Bruyère Research Institute; 43 Bruyère St Annex E, room 302 Ottawa ON Canada K1N 5C8
7. University of Ottawa; Department of Epidemiology and Community Medicine; Room H1281 40 Ruskin Street Ottawa ON Canada K1Y 4W7
8. Faculty of Medicine, University of Ottawa; Department of Medicine; Ottawa ON Canada K1H 8M5