title: Relation of parental age to rigidity in Huntington's disease.
mesh_terms: D000328:Adult; D000367:Age Factors; D000483:Alleles; D001722:Birth Order; D005260:Female; D005796:Genes; D006801:Humans; D006816:Huntington Disease / Q000235:genetics*; D008297:Male; D008423:Maternal Age; D009127:Muscle Rigidity / Q000235:genetics*; D009154:Mutation; D009461:Neurologic Manifestations