1. ST6 Obstetrics and Gynaecology, and Clinical Research Fellow Centre for Public Health, Queen's University Belfast, Institute of Clinical Science Block A, Royal Victoria Hospital Grosvenor Road Belfast BT12 6BA UK
2. Consultant in Clinical Genetics and Genomics National Maternity Hospital Holles Street Dublin 2 Ireland
3. Consultant in Clinical Genetics National Maternity Hospital Holles Street Dublin 2 Ireland
4. Principal Genomic Scientist, West Midlands Regional Genetics Laboratory Birmingham Women's and Children's NHS Foundation Trust Birmingham BT15 2TG UK
5. Dame Hilda Lloyd Professor of Fetal Medicine Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham Edgbaston Birmingham UK
6. Fetal Medicine Centre, Birmingham Women's and Children's Foundation Trust Birmingham B15 2TGUK
7. Clinical Lecturer in Maternal Fetal Medicine Centre for Public Health, Queen's University Belfast, Institute of Clinical Science BT12 6BA Belfast Block A, Royal Victoria Hospital UK