1. From QEII Health Sciences Centre, Dalhousie University, Halifax, NS (J.L.S., R.P.), the Mazankowski Alberta Heart Institute, University of Alberta, Edmonton (S.S., S.K.), the University of Ottawa Heart Institute, Ottawa (C.J.R., N.H.N.L., G.W.), Schulich School of Medicine and Dentistry, Western University, London, ON (H.K., J.M., C.E.M., A.S.L.T.), Libin Cardiovascular Institute, Calgary, AB (D.V.E., G.S.), McMaster University, Hamilton, ON (J.S.H.), Montreal Heart Institute, Montreal (B.T., B.M.,...