1. Department of Dermatology and Allergology; Ludwig-Maximilian University, Munich; Munich Germany
2. Department of Conservative Dentistry and Periodontology, University Hospital; Ludwig-Maximilian University, Munich; Munich Germany
3. Walther-Straub Institute of Pharmacology and Toxicology; Ludwig-Maximilian University, Munich; Munich Germany
4. Dermatologie Feldafing; Feldafing Germany