1. Comprehensive Genetics, Fetal Medicine Foundation of America, New York, NY, USA
2. Departments of Obstetrics and Gynecology, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
3. SUNY Syracuse, New York, NY, USA
4. Departement of Maternal Child Health, Gillings School of Public Health, University of North Carolina at Chapel Hill Chapel Hill, NC, USA