Affiliation: | 1.Department of Orthopedic Surgery, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Korea;2.Department of Family Medicine, College of Medicine, Dong-A University, Dong-A University Medical Center, Busan 49201, Korea;3.Department Medicine, College of Medicine, Catholic Kwandong University, Gangneung 25601, Korea |