1. Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia
2. St George and Sutherland Clinical School, University of New South Wales (UNSW), Kensington, NSW, Australia
3. Department of Gynecological Oncology, Henan Cancer Hospital, Zhengzhou, Henan, China
4. Zhengzhou University, Zhengzhou, Henan, China
5. School of Medicine, Deakin University, Waurn Ponds, Victoria, Australia