Migration in an urban population.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D011159:Population Surveillance; D012494:Sampling Studies; D012871:Skin Diseases / Q000453:epidemiology; D012923:Social Class; D014171:Transients and Migrants; D014505:Urban Population