[1] INSERM, Inst Cochin, Fac Med Cochin, Dept Genet & Dev Port Royal 24,U1016, F-75014 Paris, France
[2] Univ Paris 05, Inst Cochin, CNRS, UMR 8104, Paris, France
[3] Hop Necker Enfants Malad, Serv Neuropediat, Paris, France
[4] Hop Cochin, AP HP, Lab Biochim & Genet Mol, F-75674 Paris, France