title: [Ultrastructural study of progressive muscular dystrophy].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008931:Mitochondria, Muscle / Q000648:ultrastructure; D008933:Mitochondrial Swelling; D009136:Muscular Dystrophies / Q000473:pathology*