title: Two siblings with cytochrome c oxidase deficiency.
mesh_terms: D001921:Brain / Q000201:enzymology; D002493:Central Nervous System Diseases / Q000209:etiology / Q000235:genetics*; D002675:Child, Preschool; D030401:Cytochrome-c Oxidase Deficiency; D005347:Fibroblasts / Q000201:enzymology; D006801:Humans; D007223:Infant; D008099:Liver / Q000201:enzymology; D008297:Male; D009132:Muscles / Q000201:enzymology