1. Division of Cardiology, Children’s Hospital Los Angeles, CA (Y.B.-C., M.J.S., A.C.H., J.D.P.).
2. Keck School of Medicine, Los Angeles, CA (Y.B.-C., M.J.S., A.C.H., J.D.P.).
3. Department of Obstetrics and Gynecology, Keck School of Medicine, Los Angeles, CA (R.H.C.).
4. Department of Biomedical Engineering, University of Southern California, Los Angeles (L.Z., S.M.R., V.N., G.E.L.).