1 Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P. R. China.
2 Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, Sichuan, P. R. China.
3 Department of Pathology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P. R. China.
4 Department of Forensic Genetics, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, P. R. China.
5 Department of Obstetrics and Gynecology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, P. R. China.
6 Department of Gynecology, Zigong Maternity and Child Health Care Hospital, Zigong, Sichuan, P. R. China.
7 Lisen Imprinting Diagnostics Wuxi, Ltd., Wuxi, Jiangsu, P. R. China.
8 Lisen Imprinting Diagnostics, Inc., Wilmington, Delaware, USA.
9 Department of Gynecology, Chengdu Chenghua District Maternal and Child Health Center, Chengdu, Sichuan, P. R. China.
10 Department of Pathology, Nanjing First Hospital, Nanjing, Jiangsu, P. R. China.
11 Department of Pathology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, P. R. China.
12 Department of Pathology, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, P. R. China.
13 Department of Pathology, Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
14 Department of Pathology, Harbor-UCLA Medical Center, Torrance, California, USA.
15 Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, P. R. China.
16 Division of Medical Oncology, Mayo Clinic Arizona, Phoenix, Arizona, USA.
17 Department of Pathology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, Sichuan, P. R. China.
18 Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P. R. China.