[1] Queen Mary Univ London, Barts & London Sch Med, William Harvey Res Inst, Ctr Endocrinol, London, England
[2] Oxford Ctr Diabet Endocrinol & Metab, Oxford, England
[3] Great Ormond St Hosp Children NHS Fdn Trust, North East Thames Reg Genet Serv Lab, London, England
[4] Great Ormond St Hosp Children NHS Fdn Trust, Cochlear Implant Dept, London, England
[5] Great Ormond St Hosp Children NHS Fdn Trust, Clin Genet Unit, London, England
[6] Queen Mary Univ London, Barts & London Sch Med, William Harvey Res Inst, London, England