1. 1Center for Maternal-Fetal Precision Medicine, University of California, San Francisco, CA
2. 2Department of Surgery, University of California, San Francisco, CA
3. 3Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA
4. 4Department of Neurology, University of California, San Francisco, CA
5. 5Department of Obstetrics and Gynecology, University of California, San Francisco, CA
6. 6Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
7. 7Department of Obstetrics and Gynecology, California Pacific Medical Center, San Francisco, CA
8. 8Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, MD
9. 9National Institute for Child Health and Disease, National Institutes of Health, Bethesda, MD
10. 10The Fetal Diagnostic Institute of the Pacific, Honolulu, HI
11. 11Department of Clinical Genetics, Kaiser Permanente Oakland, Oakland, CA
12. 12Department of Obstetrics and Gynecology, McGill University Health Centre, Montreal, Canada
13. 13Stanford School of Medicine, Palo Alto, CA
14. 14Department of Obstetrics, Loma Linda University, Loma Linda, CA
15. 15Department of Obstetrics and Gynecology, Auckland City Hospital, Auckland, New Zealand
16. 16Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
17. 17Department of Obstetrics and Gynecology, University of California, Irvine, Orange, CA
18. 18Department of Obstetrics and Gynecology, Kaiser Permanente Santa Clara, Santa Clara, CA
19. 19Kaiser Permanente Moanalua Medical Center, Honolulu, HI
20. 20Department of Medical Genetics, Children’s Hospital of Philadelphia, Philadelphia, PA
21. 21Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Taipei, Taiwan
22. 22Feinberg School of Medicine, Northwestern University, Chicago, IL
23. 23Department of Obstetrics, Gynecology, and Women's Health, University of Hawaii, John A. Burns School of Medicine, Honolulu, HI
24. 24Vanderbilt University Medical Center, Nashville, TN
25. 25Department of Medicine, University of California, San Francisco, CA
26. 26Department of Pediatrics and Benioff Children’s Hospital, University of California, San Francisco, CA