| Affiliation: | 1. Fetal Medicine Unit, St Michael's Hospital, University Hospitals Bristol NHS Foundation Trust, Bristol, UK;2. Centre for Research in Biomedicine, University of the West of England, Bristol, UK;3. Bristol Genetics Laboratory, North Bristol NHS Trust, Bristol, UK;4. Department of Clinical Sciences at South Bristol, University of Bristol, Bristol, UK;5. School of Biomedical and Biological sciences, University of Plymouth, Plymouth, UK;6. Directorate of Women's & Children's Health, Southmead Hospital, North Bristol NHS Trust, Bristol, UK |
