1. Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA
2. Division of Radiation and Cancer Biology, Department of Radiation Oncology, Stanford University Medical Center, Stanford, CA, USA
3. Department of Obstetrics and Gynecology, Stanford University Medical Center, Stanford, CA, USA
4. Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
5. Center for Reproductive Health Sciences (CRepHS), Washington University in St. Louis, St. Louis, MO, USA