Mitochondrial EncephalomyopathiesMELAS SyndromeAcidosis, LacticRNA, Transfer, LeuMERRF SyndromeCytochrome-c Oxidase DeficiencyKearns-Sayre SyndromeDNA, MitochondrialLeigh DiseaseMitochondria, MusclePoint MutationIntestinal Pseudo-ObstructionMutationAtlantic IslandsThymidine PhosphorylasePedigreeElectron Transport Complex IVMuscle, SkeletalMitochondriaSuccinate-CoA LigasesBrain Diseases, Metabolic, InbornMitochondrial MyopathiesDeoxyuridineOphthalmoplegiaMitochondrial DiseasesGastrointestinal DiseasesRNA, Transfer, LysElectron Transport Complex IUbiquinoneSyndrome