Two families with late onset pseudohypertrophic muscular dystrophy (Becker type).
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008297:Male; D009136:Muscular Dystrophies / Q000235:genetics*; D010375:Pedigree