1. OBX Medical Group of Colorado, Denver, CO, USA
2. Progenity, Ann Arbor, MI, USA
3. Progenity Inc., San Diego, CA, USA
4. Obstetrix Medical Group, Inc., Grand Junction, CO, USA
5. Center for Research, Education, Quality, and Safety (CREQS), Obstetrix Medical Group, an affiliate of Mednax, Inc., Fountain Valley, CA, USA
6. Center for Research, Education, Quality, and Safety (CREQS), Obstetrix Medical Group, an affiliate of Mednax Inc., Phoenix, AZ, USA
7. Regional Obstetrical Consultants, Chattanooga, TN, USA
8. Maternal Fetal Medicine, Obstetrix Medical Group of Texas, Fort Worth, TX, USA
9. Obstetrix Medical Group of California, Campbell, CA, USA
10. Obstetrix Medical Group of Rockville, Rockville, MD, USA
11. Ochsner Clinic Foundation, New Orleans, LA, USA
12. Long Beach Memorial Medical Ctr, Women’s Hospital, Long Beach, CA, USA
13. Obstetrix Medical Group of Houston, The Woodlands, TX, USA
14. Obstetrix, Medical Group of Washington, Inc., Seattle, WA, USA