[1] Pusan Natl Univ, Yangsan Hosp, Dept Internal Med, Div Infect Dis, Yangsan 50612, South Korea
[2] Pusan Natl Univ, Yangsan Hosp, Dept Internal Med, Div Pulmonol, Yangsan 50612, South Korea
[3] Pusan Natl Univ, Yangsan Hosp, Dept Pathol, Yangsan 50612, South Korea
[4] Pusan Natl Univ, Yangsan Hosp, Res Inst Convergence Biomed Sci & Technol, Yangsan 50612, South Korea