| Affiliation: | 1. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Diego;2. Department of Obstetrics and Gynecology, University of California, Davis, United States;3. Department of Obstetrics and Gynecology, University of California, Los Angeles, United States;4. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco;5. Department of Obstetrics and Gynecology, University of California, Irvine, United States |
