Dr. Klaus Peter HoffmannHospital:Dermatological Department of the Ruhr University Bochum Gudrunstr. 56D-44791 Bochum Tel.: +49 234 / 509-1 direct +49 234 / 509-3440/14FAX: +49 234 / 509 3445 and (+49 234 / 509-3409)Homepage: www.derma.de/bochum
Private:Gudrunstr. 55D-44791 BochumTel.: +49 234 / 590939Fax: +49 234 / 590999mailto:k.hoffmann@derma.de