1. The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology; Ministry of Education, China Medical University; Shenyang 110001 China
2. Department of Orthopaedic Oncology; The People's Hospital of Liaoning Province; Shenyang 110016 China
3. Department of Developing Pediatrics; Shengjing Hospital, China Medical University; Shenyang 110004 China