Does training family physicians in shared decision making promote optimal use of antibiotics for acute respiratory infections? Study protocol of a pilot clustered randomised controlled trial. - Légaré F; Labrecque M; LeBlanc A; Thivierge R; Godin G; Laurier C; Côté L; O'Connor AM; Allain-Boulé N; Rousseau J; Tapp S (BMC Family Practice, 2007)