Skin diseases in twins.
D000505:Alopecia / Q000235:genetics; D003876:Dermatitis, Atopic / Q000235:genetics; D003877:Dermatitis, Contact / Q000235:genetics; D012628:Dermatitis, Seborrheic / Q000235:genetics; D004200:Diseases in Twins; D004777:Environment; D006801:Humans; D008179:Lupus Erythematosus, Discoid / Q000235:genetics; D008297:Male; D008875:Middle Aged; D010267:Parapsoriasis / Q000235:genetics; D011565:Psoriasis / Q000235:genetics; D012042:Registries; D012871:Skin Diseases / Q000235:genetics*