[1] Telethon Inst Genet & Med, Naples, Italy
[2] Max Planck Inst Mol Genet, Berlin, Germany
[3] Max Planck Inst Biophys Chem, Genes & Behav Dept, D-37077 Gottingen, Germany
[4] Primm, Milan, Italy
[5] Univ Geneva, Sch Med, Dept Genet Med & Dev, CH-1211 Geneva, Switzerland
[6] Inst Clin Souris, Illkirch Graffenstaden, France
[7] Univ Lausanne, Ctr Integrat Genom, Lausanne, Switzerland
[8] Univ Miguel Hernandez, Inst Neurociencias, Expt Embryol Lab, Alacant, Spain
[9] ORGARAT, Essen, Germany
[10] Western Gen Hosp, Human Genet Unit, MRC, Edinburgh EH4 2XU, Midlothian, Scotland
[11] RZPD Deutsch Ressourcenzentrum Genomforsch, Berlin, Germany
[12] Univ Strasbourg, Inst Genet & Biol Mol & Cellulaire, Fac Med, INSERM,U964,CNRS,UMR 7104, Illkirch Graffenstaden, France
[13] Univ Hosp Geneva, Geneva, Switzerland
[14] Univ Naples Federico II, Dept Pediat, Naples, Italy
[15] Baylor Coll Med, Dept Mol & Human Genet, Houston, TX 77030 USA
[16] Texas Childrens Hosp, Jan & Dan Duncan Neurol Res Inst, Houston, TX 77030 USA