title: Survey of patients with early-onset myotonic dystrophy in the San-In district, Japan.
mesh_terms: D000328:Adult; D000367:Age Factors; D002675:Child, Preschool; D005260:Female; D005787:Gene Frequency; D006801:Humans; D007564:Japan; D008297:Male; D009223:Myotonic Dystrophy / Q000235:genetics*; D010375:Pedigree