1 Division of Endocrinology, Diabetes and Bone Disease, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY derek.leroith@mssm.edu.
2 Division of Geriatric and Palliative Medicine, University of Michigan, Ann Arbor, MI.
3 Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.