[1] Univ Bordeaux, INSERM, U657, Pharmacoepidemiol, Bordeaux, France
[2] Univ Montreal, Fac Pharm, Montreal, PQ H3C 3J7, Canada
[3] Univ Montreal, Ctr Hosp, Res Ctr, Montreal, PQ, Canada
[4] Brigham & Womens Hosp, Div Prevent Med, Boston, MA 02115 USA