1. London IDEAS Genetics Knowledge Park, Institute of Child Health, University College London, 30 Guilford Street, London WC1N 1EH, UK
2. The Royal Oldham Hospital, The Pennine Acute Hospitals NHS Trust, Rochdale Road, Oldham OL1 2JH, UK
3. The Queen Elizabeth Hospital, University Hospital Birmingham NHS Trust, Edgbaston, Birmingham B15 2TH, UK
4. Royal Bournemouth Hospital, The Royal Bournemouth & Christchurch Hospitals NHS Trust, Castle Lane East, Bournemouth BH7 7DW, UK
5. Royal Surrey County Hospital, Royal Surrey County Hospital NHS Trust, Egerton Road, Guildford, Surrey GU2 7XX, UK
6. Heart of England NHS Foundation Trust, Birmingham B9 5SS, UK
7. Nottingham University Hospitals NHS Trust, City Campus, Hucknall Road, Nottingham NG5 1PB, UK
8. Royal Albert Edward Infirmary, Wrightington, Wigan & Leigh NHS Trust, Wigan Lane, Wigan WN1 2NN, UK
9. Hope Hospital, Salford Royal Hospitals NHS Trust, Stott Lane, Salford M6 8HD, UK
10. Trafford General Hospital, Trafford Healthcare NHS Trust, Moorside Road, Davyhulme, Manchester M41 5SL, UK
11. Frimley Park Hospital NHS Foundation Trust, Portsmouth Road, Frimley, Surrey GU16 7UJ, UK
12. British Heart Foundation Laboratories, Centre for Cardiovascular Genetics, The Rayne Building, Royal Free and University College London Medical School, London WC1E 6JJ, UK