[1] Cincinnati Childrens Hosp Med Ctr, Div Nephrol, Cincinnati, OH 45229 USA
[2] Royal Sussex Cty Hosp, Sussex Renal Unit, Brighton BN2 5BE, E Sussex, England
[3] Univ Utrecht Hosp, Hereditary Dis Clin, Dept Internal Med & Dermatol, Utrecht, Netherlands
[4] Minnesota Epilepsy Grp, St Paul, MN USA
[5] Moscow Res Inst Pediatry & Pediat Surg, Moscow, Russia
[6] Natl TB & Lung Dis Res Inst, Warsaw, Poland
[7] Klinikum Ludwig Maximilians Univ, Med Klin 1, Munich, Germany
[8] Osaka Univ, Grad Sch Med, Dept Urol, Osaka, Japan
[9] Charite, Dept Nephrol, D-13353 Berlin, Germany
[10] Cambridgeshire & Peterborough NHS Fdn Trust, Neurodev Serv, Cambridge, England
[11] Univ Cambridge, Dev Psychiat Sect, Cambridge, England
[12] Novartis Pharmaceut, Florham Pk, NY USA
[13] Novartis Pharmaceut, Florham Pk, NJ USA
[14] Novartis Pharmaceut, E Hanover, NJ USA