Epidemiology of diseases of the skin.
D003881:Dermatomycoses / Q000453:epidemiology; D006801:Humans; D007896:Leishmaniasis / Q000453:epidemiology; D009748:Nutrition Disorders / Q000453:epidemiology; D010392:Pemphigus / Q000453:epidemiology; D011164:Porphyrias / Q000453:epidemiology; D012871:Skin Diseases / Q000453:epidemiology*; D012878:Skin Neoplasms / Q000453:epidemiology; D013591:Syphilis, Cutaneous / Q000453:epidemiology