1. The Fifth Department of Orthopedics, Baoding No.1 Central Hospital, Baoding, China
2. Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, China
3. Department of Geriatrics, Baoding No.1 Central Hospital, Baoding, China
4. Department of Rehabilitation, Laishui County TCM Hospital, Baoding, China