1. Department of Orthopedics, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
2. Department of Orthopedics, Ningjin County Hospital of Hebei Province, Xingtai, Hebei, China (mainland)
3. Department of Pharmacy, Ningjin County Hospital of Hebei Province, Xingtai, Hebei, China (mainland)