1. Birmingham VA Medical Center; Department of Medicine; Faculty Office Tower 805B 510 20th Street South Birmingham AL USA 35294
2. University of Ottawa Heart Institute; Cardiovascular Research Methods Centre; 40 Ruskin Street Room H-2265 Ottawa ON Canada K1Y 4W7
3. University of Ottawa; Bruyère Research Institute; 43 Bruyère St Annex E, room 302 Ottawa ON Canada K1N 5C8
4. University of Alabama at Birmingham; Department of Medicine - Rheumatology; Birmingham USA
5. Faculty of Medicine, University of Ottawa; Department of Medicine; Ottawa ON Canada K1H 8M5
6. University of Ottawa; Department of Epidemiology and Community Medicine; Room H1281 40 Ruskin Street Ottawa ON Canada K1Y 4W7