1. Department of Pathology, University Health Network (M.L.C.K., S.L.A.), Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada M5G 2M9
2. Department of Otolaryngology (M.L.C.K., J.L.F.), Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada M5G 2M9
3. Department of Medicine (Endocrinology) (S.E.), Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada M5G 2M9
4. Department of Medicine (S.E.), University of Toronto, Toronto, Ontario, Canada M5G 2M9
5. Department of Otolaryngology (J.L.F.), University of Toronto, Toronto, Ontario, Canada M5G 2M9
6. Departments of Laboratory Medicine and Pathobiology (S.L.A.), University of Toronto, Toronto, Ontario, Canada M5G 2M9