1. Oculoplastica Bernardini Geneva Italy
2. Ocean Clinic Marbella Spain
3. Department of Hand, Plastic and Aesthetic Surgery Ludwig – Maximilian University Munich Munich Germany
4. Private Practice New York NY USA
5. Department of Radiology, & Medical School University of Belgrade Serbia
6. Private Practice Amsterdam The Netherlands
7. Private Practice Torino Italy
8. Department of Clinical Anatomy Mayo Clinic College of Medicine and Science Rochester MN USA