1. Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
2. Department of Gynecological Minimal Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
3. Department of Gynaecology and Obstetrics, Aarhus University Hospital, Aarhus, Denmark
4. The Fertility Clinic, Horsens Regional Hospital, Horsens, Denmark
5. The Fertility Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark