Renji Hospital, Medical College of Shanghai Jiaotong University, Shanghai, China.
Departments of Obstetrics and Gynecology (Prof H Yahata MD PhD, Prof K Sonoda MD PhD), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
School of Data and Computer Science (H-Y Zhang MSc),Sun Yat-sen University, Guangzhou, China.
Correspondence to: Prof Ji-Hong Liu, Department of Gynecologic Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China. Tel: +86-20-87343014.