[1] CHU Clermont Ferrand, Maternal Foetal Med Unit, Clermont Ferrand, France
[2] CHU Clermont Ferrand, Dept Paediat, Clermont Ferrand, France
[3] Univ Clermont Ferrand, CNRS, GReD, UMR 6247, F-63006 Clermont Ferrand, France
[4] CHU Clermont Ferrand, Lab Cytogenet, Clermont Ferrand, France
[5] CHU Clermont Ferrand, Pathol Lab, Clermont Ferrand, France