1. The Freeman Center for Endocrine Oncology, Mount Sinai Hospital, Departments of Pathology and Laboratory Medicine (C.C.C., S.L.A.), Ontario M5G 1X5, Canada
2. Medicine (Endocrinology) (S.E.), Ontario M5G 1X5, Canada
3. Surgery (H.S.S.), University of Toronto, Toronto, Ontario M5G 1X5, Canada