[1] Laval Univ, Family Med Dept, 1050 Ave Med, Quebec City, PQ G1V 0A6, Canada
[2] Lab Rech & Innovat Med Premiere Ligne ARIMED, St Charles Borromee, PQ, Canada
[3] CareVoice, Shanghai, Peoples R China
[4] Laval Univ, Fac Med, Quebec City, PQ, Canada
[5] Univ Oxford, Ctr Evidence Based Med, Nuffield Dept Primary Care Hlth Sci, Oxford, England