[1] Asian Pacific Res Fdn Infect Dis, Seoul 135710, South Korea
[2] Sungkyunkwan Univ, Dept Mol Cell Biol, Sch Med, Suwon 440746, South Korea
[3] Chungnam Natl Univ Hosp, Div Infect Dis, Taejon 301721, South Korea
[4] Daejeon St Marys Hosp, Dept Diagnost, Lab Med, Taejon, South Korea
[5] Dong Univ Hosp, Div Infect Dis, Pusan, South Korea
[6] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Div Infect Dis, Seoul 135710, South Korea