*
Sonographer, Moufia"s street, 97400 Saint-Denis, Ile de la Réunion, France;
**
Department of Gynecology, Félix Guyon"Hospital, 97400 Saint-Denis, Ile de la Réunion, France;
***
Department of Neonatology, Hôpital Félix Guyon, 97400 Saint-Denis, Ile de la Réunion, France.