Affiliation: | 1. Kempf und Pfaltz Histologische Diagnostik, Seminarstrasse 1, Zürich CH-8042, Switzerland;2. Department of Dermatology, University Hospital Zürich, Gloriastrasse 31 Zürich CH-8091, Switzerland;3. Department of Dermatology, HELIOS Kliniken GmbH, Senator-Brawn-Allee 33, 31135 Hildesheim, Germany |