[1] Univ London, Inst Child Hlth, London IDEAS Genet Knowledge Pk, London WC1N 1EH, England
[2] UCL Royal Free & Univ Coll Med Sch, Ctr Cardiovasc Genet, British Heart Fdn Labs, London WC1E 6JJ, England
[3] Pennine Acute Hosp NHS Trust, Royal Oldham Hosp, Oldham OL1 2JH, England
[4] Univ Hosp Birmingham NHS Trust, Queen Elizabeth Hosp, Birmingham B15 2TH, W Midlands, England
[5] Royal Bournemouth & Christchurch Hosp NHS Trust, Royal Bournemouth Hosp, Bournemouth BH7 7DW, Dorset, England
[6] Royal Surrey Cty Hosp NHS Trust, Royal Surrey Cty Hosp, Guildford GU2 7XX, Surrey, England
[7] Heart England NHS Fdn Trust, Birmingham B9 5SS, W Midlands, England
[8] Univ Nottingham Hosp NHS Trust, Nottingham NG5 1PB, England
[9] Wigan & Leigh NHS Trust, Royal Albert Edward Infirmary, Wigan Lane WN1 2NN, Wigan, England
[10] Hope Hosp, Salford Royal Hosp NHS Trust, Salford M6 8HD, Lancs, England
[11] Trafford Healthcare NHS Trust, Trafford Gen Hosp, Manchester M41 5SL, Lancs, England
[12] Frimlay Park Hosp NHS Fdn, Surrey GU16 7UJ, England