[1] UNIV ARKANSAS, DEPT DERMATOL, FAYETTEVILLE, AR 72701 USA
[2] SUNY BUFFALO, DEPT DERMATOL, BUFFALO, NY 14260 USA
[3] WARSAW ACAD MED & HOSP, DEPT DERMATOL, WARSAW, POLAND
[4] UNIV GENOA, DEPT DERMATOL, I-16126 GENOA, ITALY
[5] UNIV GENOA, IMMUNOPATHOL LAB, I-16126 GENOA, ITALY