1. Department of Orthopedics, Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan, Hubei430063, China.
2. Department of Vasculocardiology, Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan, Hubei430063, China
3. Department of Pediatric General Internal Medicine, Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu 730050, China