1. Department of Plastic, Reconstructive and Aesthetic Surgery, University Hospital, Ghent, Belgium;
2. Department of Plastic Surgery, La Sapienza University Hospital, Rome, Italy;
3. Department of Plastic Surgery, Mount Vernon Hospital, Northwood, United Kingdom;
4. Department of Plastic Surgery, University Hospital, Verona, Italy;
5. Department of Plastic Surgery, Chelsea and Westminster Healthcare NHS Trust, London, United Kingdom;
6. Department of Plastic Surgery, Queen Victoria Hospital, East Grinstead, United Kingdom.