1. Institute for Primary Health Care (BIHAM) Bern Switzerland
2. Department Woman‐Mother‐Child CHUV Lausanne Switzerland
3. Department of Fetal Medicine Armand Trousseau Hospital Paris France
4. National Reference Center for Perinatal Hemobiology (CNRHP) Clinic Unit, Armand Trousseau Hospital Paris France
5. Department of Obstetrics and Gynecology Paule de Viguier Hospital Toulouse France
6. Department of Genetics APHP, GHU Henri Mondor Hospital, and IMRB‐InsermU955 eq2 Créteil France
7. Centre National de Référence en Hémobiologie Périnatale (CNRHP), Biologic Unit Armand Trousseau Hospital Paris France
8. Department of Hemato‐Immuno‐Oncology Armand Trousseau Hospital Paris France