1. From the Departments of Medicine (H.Y.C., S.A., T.C., G.A.F.) and Pathology and Laboratory Medicine (M.R., B.W.W., B.M.M.), Heart and Lung Institute, St Paul’s Hospital, Vancouver, British Columbia, Canada, and Vascular Biology Group, Robarts Research Institute, University of Western Ontario, London, Ontario (J.G.P.), Canada. Dr Choi is currently at the Department of Molecular Genetics, UT Southwestern, Dallas, Tex. Dr Rahmani is currently at the Genome Sciences Centre, Vancouver, BC, Canada.