[1] Brigham & Womens Hosp, Channing Lab, Boston, MA 02115 USA
[2] Harvard Univ, Sch Med, Cambridge, MA 02138 USA
[3] Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Cambridge, MA 02138 USA
[4] Jewish Gen Hosp, Lady Davis Inst, Canc Prevent Res Unit, Dept Med, Montreal, PQ, Canada
[5] Jewish Gen Hosp, Lady Davis Inst, Canc Prevent Res Unit, Dept Oncol, Montreal, PQ, Canada
[6] McGill Univ, Montreal, PQ, Canada
[7] Harvard Univ, Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA
[8] Harvard Univ, Sch Publ Hlth, Dept Environm Hlth, Boston, MA 02115 USA