1 Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, 510623, P. R. China.
2 Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210008, P. R. China.
3 Department of Pathology, Anhui Provincial Children's Hospital, Hefei, Anhui, 230051, P. R. China.
4 Department of Clinical Laboratory, Molecular Epidemiology Laboratory, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150040, P. R. China.
5 Department of Pediatric Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, P. R. China.
6 Department of Hematology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, P. R. China.