Affiliation: | 1. Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China;2. Department of Radiology, Queen Mary Hospital, Hong Kong, China;3. Child Assessment Service, Department of Health, Hong Kong, China;4. Department of Orthopaedics and Traumatology, Queen Mary Hospital, Hong Kong, China;5. Division of Paediatric Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China |