[1] Queen Mary Univ London, Ctr Endocrinol, William Harvey Res Inst, Barts & London Sch Med & Dent, London, England
[2] Barts Hlth NHS Trust, Dept Paediat Endocrinol, London, England
[3] Univ Coll London Hosp NHS Fdn Trust, Dept Endocrine Surg, London, England
[4] Great Ormond St Hosp Children NHS Fdn Trust, Dept Surg, London, England
[5] Univ Coll London Hosp NHS Fdn Trust, Dept Oncol, 250 Euston Rd, London NW1 2PG, England
[6] Great Ormond St Hosp Children NHS Fdn Trust, Dept Oncol, Great Ormond St, London, England