1. From the Department of Medicine, Institute of Clinical Endocrinology (M.N., A.T., S.T., K.Ta.) and Kidney Center (K.Ts.), Tokyo Women’s Medical University, Tokyo; the Department of Internal Medicine, Mito Red Cross Hospital (A.S.), Mito, Ibaragi; and Institute of Gerontology, Nippon Medical School (T.I.), Kawasaki, Kanagawa, Japan.