[1] Gyeongsang Natl Univ, Gyeongsang Natl Univ Hosp, Dept Anesthesiol & Pain Med, Coll Med, 15 Jinju Daero 816 Beon Gil, Jinju Si 52727, South Korea
[2] Gyeongsang Natl Univ, Inst Hlth Sci, Jinju Si 52727, South Korea
[3] Gyeongsang Natl Univ Hosp, Dept Anesthesiol & Pain Med, 79 Gangnam Ro, Jinju Si 52727, South Korea