Authors: Shawn D Aaron; Katherine L Vandemheen; Louis-Philippe Boulet; R Andrew McIvor; J Mark Fitzgerald; Paul Hernandez; Catherine Lemiere; Sat Sharma; Stephen K Field; Gonzalo G Alvarez; Robert E Dales; Steve Doucette; Dean Fergusson Journal: CMAJ Date: 2008-11-18 Impact factor: 8.262