1. Department of Plastic and Reconstructive Surgery, Federico II University of Naples, Via Pansini 5, 80131 Naples, Italy
2. Department of Plastic, Reconstructive and Maxillo-Facial Surgery, Henri Mondor Hospital, University Paris, XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
3. Maxillofacial Surgery Unit, Federico II University of Naples, 80131 Naples, Italy