1 Mitochondrial and Neuromuscular Diseases Laboratory, Hospital Universitario 12 de Octubre Research Institute (i+12), Madrid, Spain; Spanish Network for Biomedical Research in Rare Diseases (CIBERER), U723, Spain; Unidad Pediátrica de Enfermedades Raras, Dpto Pediatría, Hospital Universitario 12 de Octubre, Madrid, C.S.U.R. Enfermedades Metabólicas Hereditarias, Spain.
2 Mitochondrial and Neuromuscular Diseases Laboratory, Hospital Universitario 12 de Octubre Research Institute (i+12), Madrid, Spain; Spanish Network for Biomedical Research in Rare Diseases (CIBERER), U723, Spain.
3 Mitochondrial and Neuromuscular Diseases Laboratory, Hospital Universitario 12 de Octubre Research Institute (i+12), Madrid, Spain; Spanish Network for Biomedical Research in Rare Diseases (CIBERER), U723, Spain. Electronic address: mmoran@h12o.es.