[1] Chung Shan Med Univ Hosp, Dept Internal Med, Div Endocrinol & Metab, Taichung, Taiwan
[2] Natl Yang Ming Chiao Tung Univ, Sch Med, Dept Med, Taipei, Taiwan
[3] Natl Chung Hsing Univ, Coll Med, Dept Postbaccalaureate Med, Taichung, Taiwan
[4] Natl Chung Hsing Univ, Inst Biomed Sci, Taichung, Taiwan
[5] Natl Hlth Res Inst, Inst Populat Hlth Sci, Miaoli, Taiwan
[6] Kaohsiung Chang Gung Mem Hosp, Dept Internal Med, Div Endocrinol & Metab, Kaohsiung, Taiwan
[7] Chang Gung Univ, Coll Med, Sch Med, Taoyuan, Taiwan
[8] Chung Shan Med Univ, Inst Med, Sch Med, Taichung, Taiwan
[9] Taipei Vet Gen Hosp, Dept Med, Sect Endocrinol & Metab, Taipei, Taiwan
[10] Natl Cheng Kung Univ Hosp, Dept Internal Med, Div Endocrinol & Metab, Tainan, Taiwan
[11] Natl Cheng Kung Univ, Coll Med, Tainan, Taiwan
[12] Taichung Vet Gen Hosp, Dept Internal Med, Div Endocrinol & Metab, Taichung, Taiwan
[13] Natl Hlth Res Inst, Natl Ctr Geriatr & Welf Res, Miaoli, Taiwan
[14] China Med Univ, Dept Hlth Serv Adm, Taichung, Taiwan
[15] Min Sheng Gen Hosp, Dept Family Med, Taoyuan, Taiwan
[16] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan