Authors: G Ross Baker; Peter G Norton; Virginia Flintoft; Régis Blais; Adalsteinn Brown; Jafna Cox; Ed Etchells; William A Ghali; Philip Hébert; Sumit R Majumdar; Maeve O'Beirne; Luz Palacios-Derflingher; Robert J Reid; Sam Sheps; Robyn Tamblyn Journal: CMAJ Date: 2004-05-25 Impact factor: 8.262