1. Oregon Medical Research Center; Portland OR U.S.A.
2. University of Nice Sophia Antipolis; Nice France
3. Dermatology Specialists; Louisville KY U.S.A.
4. Mount Sinai School of Medicine; New York NY U.S.A.
5. Medical University; Pleven Bulgaria
6. Hexal AG; Holzkirchen Germany
7. Central Dermatology; St Louis MO U.S.A.