1. Pain Research Center, Department of Orthopedic Surgery, Dongsan Medical Center, School of Medicine, Keimyung University, Daegu, Republic of Korea
2. Department of Rehabilitation Medicine, Dongsan Medical Center, School of Medicine, Keimyung University, Daegu, Republic of Korea
3. Department of Biochemistry, School of Medicine, Keimyung University, Daegu, Republic of Korea