[1]Kaohsiung Chang Gung Mem Hosp, Dept Internal Med, Kaohsiung, Taiwan.
[2]Min Sheng Gen Hosp, Dept Internal Med, Taoyuan, Taiwan.
[3]Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan.
[4]Natl Taiwan Univ, Coll Med, Taipei, Taiwan.
[5]Natl Cheng Kung Univ, Inst Clin Med, Coll Med, Tainan, Taiwan.
[6]Natl Cheng Kung Univ Hosp, Natl Cheng Kung Univ, Coll Med, Dept Internal Med, Tainan, Taiwan.
[7]Natl Cheng Kung Univ Hosp, Natl Cheng Kung Univ, Coll Med, Dept Internal Med,Dou Liou Branch, Yunlin, Taiwan.
[8]Hsinchu Mackay Mem Hosp, Dept Internal Med, Hsinchu, Taiwan.
[9]Natl Yang Ming Chiao Tung Univ, Sch Med, Taipei, Taiwan.
[10]Far Eastern Mem Hosp, Dept Internal Med, New Taipei City, Taiwan.
[11]Kaohsiung Vet Gen Hosp, Dept Internal Med, Kaohsiung, Taiwan.
[12]Natl Taiwan Univ Hosp, Dept Internal Med, Yunlin Branch, Yunlin, Taiwan.
[13]Natl Taiwan Univ Hosp, Dept Internal Med, Hsinchu Branch, Hsinchu, Taiwan.
[14]Natl Taiwan Univ, Coll Med, Dept Trop Med & Parasitol, Taipei, Taiwan.
[15]Kaohsiung Chang Gung Mem Hosp, Dept Internal Med, 123,Ta Pei Rd, Kaohsiung 83304, Taiwan.
[16]Natl Taiwan Univ Hosp, Ctr Infect Control, Taipei, Taiwan.
[17]Triserv Gen Hosp, Dept Internal Med, Taipei, Taiwan.
[18]Kaohsiung Municipal Tatung Hosp, Dept Internal Med, Kaohsiung, Taiwan.
[19]Kaohsiung Med Univ Hosp, Dept Internal Med, Kaohsiung, Taiwan.
[20]Chang Gung Univ, Dept Med, Kaohsiung, Taiwan.
[21]Chiayi Chang Gung Mem Hosp, Dept Internal Med, Chiayi, Taiwan.
[22]Kaohsiung Chang Gung Mem Hosp, Dept Internal Med, 123 Ta Pei Rd, Kaohsiung 83304, Taiwan.