1. From the Mitochondrial Research Group, The Medical School, and the
2. Department of Child Neurology, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, the Netherlands; the
3. Department of Neurology, Friedrich-Baur-Institute, Ludwig-Maximilians-University, Munich, Germany; and the
4. From the Mitochondrial Research Group, The Medical School, and the4Department of Ophthalmology, Royal Victoria Infirmary, Newcastle-upon-Tyne, United Kingdom.
5. From the Mitochondrial Research Group, The Medical School, and the5Institute of Human Genetics, Newcastle University, Newcastle-upon-Tyne, United Kingdom; the