[1] Univ Essen Gesamthsch, Dept Dermatol, Essen, Germany
[2] Univ Gottingen, Dept Dermatol, D-37073 Gottingen, Germany
[3] Univ Erlangen Nurnberg, Dept Dermatol, Erlangen, Germany
[4] Univ Erlangen Nurnberg, Inst Biochem, D-91054 Erlangen, Germany
[5] Univ Bonn, Dept Dermatol, Bonn, Germany
[6] Fachklin Bad Bentheim, Dept Dermatol, Bad Bentheim, Germany
[7] Univ Munster, Dept Dermatol, D-48149 Munster, Germany
[8] Univ Erlangen Nurnberg, Inst Human Genet, Erlangen, Germany