[1] Bretonneau Univ Hosp, Fetal Med Unit, Olympe Gouges Womens Hlth Ctr, F-37044 Tours, France
[2] Bretonneau Univ Hosp, Dept Genet, F-37044 Tours, France
[3] Gatien De Clocheville Univ Hosp, Pediat Surg Unit, F-37044 Tours, France
[4] Gatien De Clocheville Univ Hosp, Pediat Radiol Unit, F-37044 Tours, France