Beyond Wavy Hairs The Epidermal Growth Factor Receptor and Its Ligands in Skin Biology and Pathology

From the Institute of Molecular Animal Breeding and Biotechnology and Laboratory for Functional Genome Analysis,* Gene Center, LMU Munich, Munich, Germany; the Department of Dermatology, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany; the Department of Biology, Institute of Cell Biology, ETH Zurich, Zürich, Switzerland; and the School of Translational Medicine, University of Manchester, Manchester, United Kingdom