title: Premature aging syndromes.
mesh_terms: D000368:Aged; D003057:Cockayne Syndrome / Q000235:genetics / Q000503:physiopathology; D004314:Down Syndrome / Q000235:genetics / Q000503:physiopathology; D005260:Female; D006801:Humans; D008136:Longevity; D008875:Middle Aged; D011371:Progeria / Q000235:genetics*; D013045:Species Specificity; D013577:Syndrome; D013997:Time Factors; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D014898:Werner Syndrome / Q000235:genetics / Q000503:physiopathology