[1] Univ Antwerp, Dept Med Genet, B-2020 Antwerp, Belgium
[2] Radboud Univ Nijmegen, Med Ctr, Inst Genet & Metab Dis, Nijmegen Ctr Mol Life Sci,Dept Human Genet, NL-6525 ED Nijmegen, Netherlands
[3] Univ Washington, Sch Med, Dept Genome Sci, Seattle, WA USA
[4] Univ Washington, Howard Hughes Med Inst, Seattle, WA 98195 USA
[5] Univ Antwerp, Dept Math & Comp Sci, Biomed Informat Res Ctr Antwerpen Biomina, Edegem, Belgium
[6] Univ Antwerp Hosp, Antwerp, Belgium
[7] Westmead Hosp, Dept Med Genet, Sydney, NSW, Australia
[8] Childrens Hosp, Dept Clin Genet, Westmead, NSW, Australia
[9] Karolinska Inst, Dept Mol Med & Surg, Clin Genet Unit, Stockholm, Sweden
[10] Uppsala Univ, Dept Womens & Childrens Hlth, Uppsala, Sweden
[11] IRCCS, Assoc Oasi Maria Santissima, Neurol Unit, Troina, Italy
[12] Univ Catania, Catania, Italy
[13] IRCCS, Assoc Oasi Maria Santissima, Lab Cytogenet, Troina, Italy
[14] IRCCS, Assoc Oasi Maria Santissima, Unit Pediat & Med Genet, Troina, Italy
[15] Radboud Univ Nijmegen, Med Ctr, Donders Inst Brain Cognit & Behav, NL-6525 ED Nijmegen, Netherlands