1. Department of Plastic and Reconstructive Surgery; University of Sassari; Sassari 07100 Italy
2. Department of Plastic and Reconstructive Surgery; China Medical University Hospital; Taichung 40447 Taiwan Republic of China
3. Department of Plastic and Reconstructive Surgery; “Sapienza” University of Rome; Rome 00161 Italy
4. Department of Emergency and Organ Transplantation, Plastic and Reconstructive Surgery and Burns Unit; “Aldo Moro” University of Bari; Bari Italy