1. Department of Obstetrics and Gynecology Baylor College of Medicine & Texas Children's Fetal Center Houston TX USA
2. Maternal–Fetal Medicine Research Center Shiraz University of Medical Sciences Shiraz Iran
3. Department of Obstetrics and Gynecology Women's Health Hospital, Assiut University Assiut Egypt
4. Fetal Medicine and Surgery Research Center, Fetal Medicine Mexico Querétaro Mexico
5. Department of Obstetrics and Gynecology Angers University Hospital Angers France