[1] HealthPartners Inst, Park Nicollet Contact Dermatitis Clin, Minneapolis, MN 55450 USA
[2] Univ Minnesota, Med Sch Minneapolis, Minneapolis, MN USA
[3] Univ Minnesota, Dept Dermatol, Minneapolis, MN USA
[4] Minneapolis Vet Affairs Med Ctr, Dept Dermatol, Minneapolis, MN USA