Yasmine Derbala, MD*, Frantisek Grochal, MD**, Philippe Jeanty, MD, PhD***.

*   Derbala Ultrasound Center, Cairo, Egypt;
**  UVN SNP Ruzomberok, Gynecological and obstetrical department, 03401 Ruzomberok, Slovak Republic;
*** Inner Vision Woman’s Ultrasound, 2201 Murphy Avenue, Suite 203, Nashville, TN, USA.

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