1. Department of Histology Embryology and CytogeneticsNecker‐Enfants Malades Hospital, APHP Paris France
2. Department of Obstetrics and Maternal Fetal MedicineNecker‐Enfants Malades Hospital, APHP Paris France
3. Department of GeneticsHospices Civils de Lyon Lyon France
4. Laboratory of CytogeneticsCochin Hospital, APHP Paris France
5. Paris Descartes UniversitySorbonne Paris Cité Paris France
6. Department of Gynecology and ObstetricsCochin Hospital, APHP Paris France
7. Department of GeneticsNecker‐Enfants Malades Hospital, APHP Paris France