1. Department of Pediatric Orthopedics, Shaanxi Friendship Hospital, Xi’an, Shaanxi, China (mainland)
2. Department of Orthopedics, Xi’an Union Hospital, Xi’an, Shaanxi, China (mainland)
3. Department of Immune Rheumatology, Yan’an University Affiliated Hospital, Yan’an, Shaanxi, China (mainland)