1. Division of Maternal Fetal Medicine Department of Obstetrics and Gynecology Harbor‐UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles CA USA
2. Division of Rheumatology Department of Medicine Keck School of Medicine of the University of Southern California Los Angeles CA USA
3. Division of Rheumatology Department of Medicine Los Angeles County + University of Southern California Medical Center Los Angeles CA USA
4. Keck School of Medicine of the University of Southern California Los Angeles CA USA