1. Department of Anesthesia and Pain Medicine, Pusan National University, School of Medicine, Busan, South Korea
2. Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University, School of Medicine, Yangsan, South Korea
3. Department of Biochemistry, Pusan National University, School of Medicine, Yangsan, South Korea
4. Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea