[1] Buddhist Tzu Chi Med Fdn, Taipei Tzu Chi Hosp, Dept Emergency Med, New Taipei 231, Taiwan
[2] Tzu Chi Univ, Sch Med, Dept Emergency Med, Hualien 970, Taiwan
[3] Yuh Ing Jr Coll Hlth Care & Management, Kaohsiung 807, Taiwan
[4] Kaohsiung Vet Gen Hosp, Dept Med Educ & Res, Kaohsiung 813, Taiwan
[5] Buddhist Tzu Chi Med Fdn, Taipei Tzu Chi Hosp, Dept Obstet & Gynecol, New Taipei 231, Taiwan
[6] Tzu Chi Univ, Sch Med, Dept Obstet & Gynecol, Hualien 970, Taiwan
[7] Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Div Nephrol, Dept Internal Med,Coll Med, Tainan 704, Taiwan
[8] Chang Bing Show Chwan Mem Hosp, Div Nephrol, Dept Internal Med, Changhua 505, Taiwan
[9] Show Chwan Mem Hosp, Res Assistant Ctr, Changhua 500, Taiwan