1. Department of Obstetrics The First Affiliated Hospital of Chongqing Medical University Chongqing China
2. State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality Chongqing Medical University Chongqing China
3. International Collaborative Laboratory of Reproduction and Development of Chinese Ministry of Education Chongqing Medical University Chongqing China
4. Cancer, Disease and Developmental epigenetics, Murdoch Children's Research Institute Royal Children's Hospital Melbourne VIC Australia
5. Centre for Women's and Newborn Health Institute of Metabolism and Systems Research University of Birmingham Birmingham UK
6. College of Life Sciences University of Leicester Leicester UK