1. Michelson Diagnostics Ltd; Maidstone Kent U.K.
2. University Hospital Munich; Department of Dermatology; Munich Germany
3. Private Dermatology Office/CMB Collegium Medicum Berlin GmbH; Berlin Germany
4. Dermatology Center Bonn Friedensplatz; Bonn Germany
5. Private Dermatology Office; Freising Germany
6. Private Dermatology Office; Wuppertal Germany
7. St Bernard-Hospital; Kamp Lintfort Germany
8. General Hospital Augsburg; Department of Dermatology and Allergology; Augsburg Germany