1. Hautzentrum Köln (Cologne Dermatology); Köln Germany
2. Sommerclinics; Frankfurt am Main Germany
3. Rosenparkklinik; Darmstadt Germany
4. Institute of Anatomy; Paracelsus Medical University Salzburg & Nuremberg; Salzburg Austria
5. Department of Anatomy; Ross University School of Medicine; Roseau, Commonwealth of Dominica West Indies
6. Smoothline; Zürich Switzerland
7. Academic Teaching Hospital of Technical University of Dresden; Dresden Germany
8. St. Josef-Hospital Bochum; Abteilung für Ästhetisch Operative Medizin und Kosmetische Dermatologie; Bochum Germany
9. Department of Paediatric Dermatology; Colentina Clinica Hospital; Carol Davila University of Medicine and Pharmacy; Bucharest Romania
10. Dermatology and Lasercenters; Landau Germany