[1] MacKay Mem Hosp, Dept Internal Med, Div Infect Dis, Taipei, Taiwan
[2] MacKay Med Coll, Dept Med, New Taipei, Taiwan
[3] MacKay Mem Hosp, Dept Dermatol, Taipei, Taiwan
[4] MacKay Mem Hosp, Dept Lab Med, Taipei, Taiwan
[5] MacKay Med Coll, Inst Long Term Care, New Taipei, Taiwan
[6] MacKay Med Coll, Inst Biomed Sci, New Taipei, Taiwan
[7] Johns Hopkins Univ, Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD 21205 USA