1. Incidence of alopecia areata in Olmsted county, Minnesota, 1975 through 1989;Safavi;Mayo Clin. Proc.,1995
2. Alopecia areata an evaluation of 736 patients;Muller;Arch. Dermatol.,1963
3. Alopecia areata and cytomegalovirus infection in twins: Genes versus environment?;Jackow;J. Am. Acad. Dermatol.,1998
4. The genetic risk for alopecia areata in first degree relatives of severly affected patients;van der Steen;Acta Derm. Venereol.,1992
5. Prevalence of nail abnormalities in children with alopecia areata;Tosti;Pediatr. Dermatol.,1994