1. Changqing Hu:
The Fifth Orthopaedics Department, The No.1 Central Hospital of Baoding City, Baoding, Hebei, China
2. Yong Lian:
The Fifth Orthopaedics Department, The No.1 Central Hospital of Baoding City, Baoding, Hebei, China
3. Xiao Fan:
The Fifth Orthopaedics Department, The No.1 Central Hospital of Baoding City, Baoding, Hebei, China
4. Zhiping Sun:
The Fifth Orthopaedics Department, The No.1 Central Hospital of Baoding City, Baoding, Hebei, China