1. Department of Orthopedic Surgery, Eunpyeong St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.
2. Customer Happiness Team, Eunpyeong St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.
3. K-School, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
4. Department of Radiology, Eunpyeong St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.