Epidemiology in psoriasis research.
D000328:Adult; D000367:Age Factors; D004200:Diseases in Twins; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics; D012744:Sex Ratio; D011795:Surveys and Questionnaires