[1] Hamad Bin Khalifa Univ, Qatar Biomed Res Inst, Doha, Qatar
[2] Univ Calif Los Angeles, Med Endocrinol, Los Angeles, CA USA
[3] Mayo Clin, Coll Med, Endocrinol Diabet Metab & Nutr, Rochester, MN USA
[4] Keio Univ, Sch Med, Internal Med, Tokyo, Japan