[1] Korea Univ, Coll Med, Dept Internal Med, Div Infect Dis, Seoul, South Korea
[2] Inje Univ, Dept Internal Med, Div Infect Dis, Coll Med, Busan, South Korea
[3] Hanyang Univ, Dept Internal Med, Coll Med, Seoul, South Korea
[4] Jeju Natl Univ, Dept Internal Med, Div Infect Dis, Coll Med, Jeju, South Korea
[5] Kyung Hee Univ, Dept Internal Med, Coll Med, Seoul, South Korea
[6] Pusan Natl Univ, Sch Med, Dept Internal Med, Busan, South Korea
[7] Pusan Natl Univ Hosp, Med Res Inst, Busan, South Korea
[8] Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Internal Med,Div Infect Dis, Daegu, South Korea
[9] Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea
[10] Korean Soc Antimicrobial Therapy, Seoul, South Korea
[11] Korean Soc Infect Dis, Seoul, South Korea
[12] Kyungpook Natl Univ, Korean Soc Antimicrobial Therapy, 23 Seocho Daero,74 Gil,Seochotown Trapalace 806, Seoul, South Korea
[13] Kyungpook Natl Univ, Sch Med, Dept Internal Med, 23 Seocho Daero,74 Gil,Seochotown Trapalace 806, Seoul, South Korea