[1] Inchoan Med Ctr, Dept Internal Med, Div Infect Diseases, Inchoan, South Korea
[2] Korea Univ, Guro Hosp, Coll Med, Dept Internal Med,Div Infect Diseases, 148 Curocilong Ro, Seoul 08308, South Korea
[3] Korea Univ, Anam Hosp, Coll Med, Dept Internal Med,Div Infect Diseases, Seoul, South Korea
[4] Chung Ang Univ, Seoul Hosp, Dept Internal Med, Div Infect Diseases, Seoul, South Korea
[5] Yonsei Univ, Gangnam Severance Hosp, Coll Med, Dept Internal Med,Div Infect Diseases, Seoul, South Korea
[6] Korea Univ, Guro Hosp, Dept Infect Control, Seoul, South Korea
[7] Ewha Womans Univ, Mokdong Hosp, Dept Infect Control, Seoul, South Korea
[8] Keortyanp Univ, Coll Nursing, Daejeon, South Korea
[9] Konkuk Univ, Seoul Hosp, Dept Infect Control, Seoul, South Korea
[10] Catholic Univ, Korea Coll Nursing, Seoul, South Korea
[11] Seoul Metropolitan Govt Seobuk Hosp, Dept Internal Med, Div Infect Diseases, Seoul, South Korea
[12] Yonsei Univ, Coll Med, Dept Internal Med, Div Infect Diseases, Seoul, South Korea
[13] Soonchunhyang Univ, Coll Med, Dept Internal Med, Div Infect Diseases, Seoul, South Korea
[14] Ajou Univ, Sch Med, Dept Internal Med, Div Infect Diseases, Seoul, South Korea
[15] Seoul Natl ljniveus, Coll Med, Dept Internal Med, Seoul, South Korea
[16] Eulji Univ Hosp, Dept Internal Med, Div Infect Diseases, Daejeon, South Korea
[17] Hallam Univ, Kangnam Sacred Heart Hosp, Coll Med, Dept Internal Med,Div Infect Diseases, Sheffield, S Yorkshire, England
[18] Hallam Univ, Kangdong Sacred Heart Hosp, Coll Med, Dept Internal Med,Div Infect Diseases, Sheffield, S Yorkshire, England
[19] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Infect Diseases, Seoul, South Korea
[20] Kangwon Natl Univ, Sch Med, Dept Internal Med, Dept Infect Diseases, Chucheon, South Korea
[21] Catholic Univ Korea, Coll Med, Dept Internal Med, Dept Infect Diseases, Chucheon, South Korea