[1] Univ Nottingham, Paediat Nephrol, Nottingham, England
[2] Guys Hosp, MRC Ctr Transplantat, London, England
[3] Guys Hosp, Viapath Clin Transplantat Lab, London, England
[4] Birkbeck Univ London, Dept Org Psychol, London, England
[5] Great Ormond St Hosp Children NHS Fdn Trust, Paediat Nephrol, London, England