title: Normal muscle spindle morphology in myotonia congenita: the spindle abnormality in myotonic dystrophy is not due to myotonia alone.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D006801:Humans; D008297:Male; D009470:Muscle Spindles / Q000473:pathology*; D009132:Muscles / Q000473:pathology; D009224:Myotonia Congenita / Q000235:genetics / Q000473:pathology*; D009223:Myotonic Dystrophy / Q000473:pathology