[1] Univ Paris 05, Necker Enfants Malad Hosp, Reference Ctr, Metab unit, F-75009 Paris, France
[2] Univ Paris 05, Necker Enfants Malad Hosp, INSERM, U781, F-75015 Paris, France
[3] Univ Paris 05, Necker Enfants Malad Hosp, Biochem Unit, F-75015 Paris, France
[4] Robert Debre Hosp, Biochem Unit, F-7509 Paris, France
[5] Mere Enfant Hosp, Nephrol GC, F-44093 Nantes, France