[1] Gyeongsang Natl Univ, Inst Hlth Sci, Sch Med, Dept Thorac & Cardiovasc Surg, Jinju, South Korea
[2] Gyeongsang Natl Univ, Dept Thorac & Cardiovasc Surg, Changwon Hosp, Chang Won, South Korea
[3] Gyeongsang Natl Univ, Gyeongsang Natl Univ Hosp, Sch Med, Dept Diagnost Radiol,Coll Med, Chang Won, South Korea
[4] Gyeongsang Natl Univ, Changwon Hosp, Coll Med, Div Pulmonol & Allergy,Dept Internal Med, Chang Won, South Korea
[5] Gyeongsang Natl Univ, Inst Hlth Sci, Changwon Hosp, Chang Won, South Korea
[6] Gyeongsang Natl Univ Hosp, Dept Thorac & Cardiovasc Surg, Jinju, South Korea