[1] Catholic Univ Korea, Coll Med, Seoul St Marys Hosp, Dept Lab Med, Seoul, South Korea
[2] Catholic Univ Korea, Dept Microbiol, Seoul, South Korea
[3] Catholic Univ Korea, Coll Med, Uijeongbu St Marys Hosp, Dept Lab Med, Seoul, South Korea
[4] Catholic Univ Korea, Coll Med, St Vincents Hosp, Dept Lab Med, Seoul, South Korea