1. Department of Artificial Intelligence, Dongguk University, Seoul, Korea.
2. Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, Goyang, Korea.
3. Department of Computer Science and Engineering, Dongguk University, Seoul, Korea.
4. Department of Statistics, Dongguk University, Seoul, Korea.
5. Department of Orthopedic Surgery, Yeongnam University Medical Center, Yeongnam University College of Medicine, Daegu, Korea.
6. Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.