[1] Univ Gottingen, Dept Dermatol, D-37075 Gottingen, Germany
[2] Univ Gottingen, Dept Med Stat, D-37075 Gottingen, Germany
[3] Univ Tubingen, Dept Dermatol, D-72076 Tubingen, Germany
[4] Klinikum Augsburg, Dept Dermatol & Allergol, D-86156 Augsburg, Germany
[5] Univ Munich, Dept Dermatol, D-80337 Munich, Germany
[6] Univ Halle Wittenberg, Dept Dermatol, D-06097 Halle Saale, Germany