1. Centre de Recherche en Reproduction Animale (P.L.C.L., B.D.M.), Faculté de Médecine Vétérinaire, Université de Montréal, Québec, Canada J2S 7C6
2. Dairy and Swine Research and Development Centre (M.-F.P.), Agriculture and Agri-Food Canada, Québec, Canada J1M 1Z3
3. Department of Psychiatry (G.C., G.T.), McGill Group for Suicide Studies, Douglas Hospital, Québec, Canada H4H 1R3