1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.
2 Department of Biochemistry and Molecular Biology, UP College of Medicine, University of the Philippines Manila, Manila, Philippines.
3 Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, 8th Floor Emergency Building, Taichung 407219, Taiwan.
4 Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan.
5 Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 40227, Taiwan.