title: Value of twin studies in dermatological genetics.
mesh_terms: D001249:Asthma / Q000235:genetics; D003231:Conjunctivitis / Q000235:genetics; D004200:Diseases in Twins; D004485:Eczema / Q000235:genetics; D004777:Environment; D005260:Female; D005787:Gene Frequency; D005808:Genes, Recessive; D014644:Genetic Variation; D005826:Genetics, Medical; D005838:Genotype; D006801:Humans; D008297:Male; D008954:Models, Biological; D010641:Phenotype; D006255:Rhinitis, Allergic, Seasonal / Q000235:genetics; D012871:Skin Diseases / Q000235:genetics*; D014581:Urticaria / Q000235:genetics; D014983:Xeroderma Pigmentosum / Q000235:genetics