1. Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou 325027, P.R. China
2. Department of Pediatric Dentistry, The Wenzhou Dental Hospital, Lucheng, Wenzhou 325027, P.R. China
3. Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, Heping, Shenyang 110001, P.R. China