Affiliation: | 1. Department of Anesthesiology and Pain Medicine, College of Medicine, Hallym University, Chuncheon-si, Gangwon-do, Republic of Korea;2. Department of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon-si, Gangwon-do, Republic of Korea;3. Institute for Skeletal Aging and Orthopedic Surgery, College of Medicine, Hallym University, Chuncheon-si, Gangwon-do, Republic of Korea |