[1] Pusan Natl Univ, Sch Med, Pusan Natl Univ Hosp, Dept Radiol, Busan, South Korea
[2] Pusan Natl Univ, Pusan Natl Univ Hosp, Sch Med, Dept Internal Med, Busan, South Korea
[3] Biomed Res Inst, Busan, South Korea
[4] Pusan Natl Univ, Pusan Natl Univ, Yangsan Hosp, Dept Radiol,Sch Med, Yangsan, South Korea
[5] Pusan Natl Univ, Pusan Natl Univ, Res Inst Convergence Biomed Sci & Technol, Yangsan Hosp,Sch Med, Yangsan, South Korea