1. Denova Research Chicago Illinois USA
2. Skin Concept Munich Germany
3. BOYD Birmingham Michigan USA
4. Aalst Dermatology Clinic Aalst Belgium
5. Unit of Dermatology and Dermatosurgery, Centro Diagnostico Italiano Milan Italy
6. Allergan Aesthetics, an AbbVie Company Irvine California USA
7. Allergan Aesthetics, an AbbVie Company Rome Italy