1. Department of Medicine (L.C., H.P.J.B., Y.H., G.N.H.), McGill University and Royal Victoria Hospital, Montréal, Québec H3A 1A1, Canada
2. Departments of Physiology (G.N.H.), McGill University and Royal Victoria Hospital, Montréal, Québec H3A 1A1, Canada
3. Departments of Human Genetics (G.N.H.), McGill University and Royal Victoria Hospital, Montréal, Québec H3A 1A1, Canada
4. the J. A. DeSeve Laboratory of Biochemical Neuroendocrinology (N.G.S.), Clinical Research Institute of Montréal, Université de Montréal, Montréal, Québec H2W 1R7, Canada