France Légaré1
, Glyn Elwyn2
, Martin Fishbein3
, Pierre Frémont1
, Dominick Frosch4
, Marie-Pierre Gagnon1
, David A Kenny5
, Michel Labrecque1
, Dawn Stacey6
, Sylvie St-Jacques1
and Trudy van der Weijden7 
1Centre hospitalier universitaire de Québec, Hôpital St-François D'Assise, Unité de recherche évaluative, 10 rue de l'Espinay, Québec, Québec, G1L 3L5, Canada
2Department of Primary Care and Public Health, School of Medicine, Cardiff University, Neuadd Meirionnydd, Heath Park CF 14 4YS, UK
3Annenberg School for Communication, University of Pennsylvania, 3620 Walnut Street, Philadelphia, PA 19104, USA
4UCLA Med-GIM & HSR, BOX 951736, 911 Broxton, Los Angeles, CA 90095-1736, USA
5Department of Psychology, University of Connecticut, 406 Babbidge Road Unit 1020 Storrs, CT 06269-1020, USA
6School of Nursing, University of Ottawa, 451 Smyth, Room RGN 3247A Ottawa, ON K1H 8M5, Canada
7Department of General Practice/School of Public Health and Primary Care Caphri, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands