1. Department of Biochemistry, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
2. Department of Pediatrics, Nijmegen Centre of Mitochondrial Disorders, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
3. Department of General Pediatrics and Neonatology, University Children's Hospital, Heinrich-Heine-University, Düsseldorf, Germany.
4. Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.