1. Section of Oral and Maxillofacial Surgery, Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
2. Plastic surgeon in private practice in Brescia, Italy
3. Plastic surgeon in private practice in Milan, Italy
4. General surgeon and esthetic surgeon in private practice in Bologna, Italy
5. Section of ENT, Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics; University of Verona, Verona, Italy
6. Plastic surgeon in private practice in Amsterdam, The Netherlands
7. Plastic Surgeon, University Medical Center of Groningen, The Netherlands