1960-1966 Halle/Saale: Study of Medicine at Martin-Luther University
1966-1967 Halle/Saale: Internship at Univ Hosp Depts Internal Medicine, Physiological Chemistry, Surgery (Traumatology)
1967-1971 Halle/Saale: Dept Dermatol, Univ Hosp, 1971 board certification, 1968 MD
1971-1973 Halle/Saale: Dept Dermatol, Univ Hosp, senuior resident
1973-1974 Arnstein/Bavaria: General Practitioner
1975-1986 Erlangen: Dept Dermatol Univ Hosp. 1975 Assistant prof, 1978 PhD thesis (Dr med habil) and private docent, 1978 Associate prof, 1979 Clinical prof Dermatol
1986-2000 Wuppertal: Head, Dept Dermatol Municip Hosp and Teaching Hosps Univ Düsseldorf and Witten-Herdecke
2000-2004 Oslo/Sandvika: Head, Dept Dermatol, Klinikk Bunaes
2004-2005 Nijmegen, Netherland: Visiting Prof Dept Dermatol St Radboud Univ
2005-now Berne, Switzerland: Visiting Prof
2006-now Porto, Portugal: Consultant Centro Dermatol Epidermis, Inst CUF
2006-now Ghent, Belgium: Visiting Prof

Special interests
Diseases of the oral mucosa, nail diseases, dermatological surgery, nail surgery, dermatopathology, nail pathology

Societies
German Soc Dermatol, German Soc Dermatol Surg, German Mycol Soc, German Working Group Dermatopathol, Int Soc Dermatol Surg
Corresponding member: Soc Franc Dermatol Vénéréol, Autrian Soc Dermatol
Honorary member: Turkish Soc Dermatol, As Colomb Dermatol, Polish Soc Dermatol, Rouman Soc Dermatol, Swiss Soc Dermatol Venereol, Rouman Soc Dermatopathol, Argent As Plast Surg, Slovak Soc Aesthet Med, Am Dermatol Ass

Reviewer
Acta Dermatovenereol, Am J Dermatopathol, Ann Dermatol Vénéréol, Arch Dermatol, Br J Dermatol, Histochemistry, J AmAcad Dermatol, J Cut Pathol, etc.

Publications
445 publications in German, English, French and Spanish, 230 indexed in Pubmed. 180 book chapters, 10 books, 1650 lectures.