[1] Inje Univ, Coll Med, Sanggye Paik Hosp, Dept Lab Med, Seoul, South Korea
[2] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Pulm & Crit Care Med, Seoul, South Korea
[3] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Infect Dis, Seoul, South Korea
[4] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Lab Med, 88,Olympic Ro 43 Gil, Seoul 05505, South Korea