1. Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, University of Missouri – Kansas City, Kansas City, MO, USA;
2. Department of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, MI, USA;
3. Federico Villareal National University, Lima, Peru;
4. Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, MI, USA