[1] Acad Hosp Schwabing, Inst Clin CHem Mol Diagnost & Mitochondrial Genet, Metab Dis Ctr, Munich, Germany
[2] Childrens Hosp, Matab Dis Ctr, Munich, Germany
[3] Tech Univ Munich, Inst Med Genet, D-8000 Munich, Germany
[4] Univ Munich, Friedrich Baur Inst, Munich, Germany
[5] Univ Munich, Dept Neurol, Munich, Germany
[6] GSF, Res Ctr Environm & Hlth, Inst Human Genet, Neuherberg, Germany
[7] Univ Hamburg, Med Ctr Eppendorf, Dept Pediat, Hamburg, Germany
[8] Newcastle Univ, Mitochondrial Res Grp, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[9] Newcastle Univ, Inst Human Genet, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[10] Newcastle Gen Hosp, Dept Paediat Neurol, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[11] UCL, Inst Neurol, Dept Mol Neurosci, London, England
[12] Natl Neurol Inst, Pierfranco & Luisa Mariani Ctr Study Childrens Mi, Unit Mol Neurogenet, Milan, Italy
[13] Osped Bellaria, Dept Neurosci, Neurol Unit, Bologna, Italy
[14] Univ Helsinki, Dept Med Genet, Programme Neurosci, FIN-00014 Helsinki, Finland
[15] Vaasa Cent Hosp, Dept Neurol, Vaasa, Finland
[16] Paracelsus Med Univ, Pediat Clin, Salzburg, Austria
[17] Charles Univ Prague, Fac Med, Dept Pediat, Prague, Czech Republic
[18] Charles Univ Prague, Fac Med, Ctr Appl Genom, Prague, Czech Republic