From the University Medical Center Groningen, University of Groningen, the Netherlands (H.L.H., D.J.V.V.); Medical Statistics Unit, London School of Hygiene and Tropical Medicine, London, UK (D.N., S.P.); The Cardiovascular Division, Brigham and Women’s Hospital, Boston, Mass (M.A.P.); Sahlgrenska University Hospital/Östra Göteborg, Sweden (K.S.); University of Glasgow, Glasgow, UK (J.J.V.M.); Hamilton Health Sciences and McMaster University, Hamilton, Ontario, Canada (S.Y.); Duke University... (At 2006-02-07)
