1. Skin disease in Lambeth;Rea;Br J Prev Soc Med,1976
2. A dermatological survey of long-stay mental patients;Kidd;Br J Dermatol,1961
3. Hellgren L Psoriasis: the Prevalence of Sex. Age and Occupational Groups in Total Populations in Sweden. Morphology Inheritance and Association with other Skin and Rheumatic Diseases Almqvist & Wiksell 1967
4. Lomholt G Psoriasis: Prevalence Spontaneous Course and Genetics: A Census Study on the Prevalence of Skin Diseases on the Faroe Islands. GEC Gad 1963
5. Johnson M-LT Skin Conditions and Related Need for Medical Care among Persons 1-74 Years. United States 1971-1974 Vital and Health Statistics 79 1660 November 1978