1. Department of Plastic and Reconstructive Surgery, China Medical University Hospital, 2 Yuh‐Der Road, Taichung 40447, Republic of China, Taiwan
2. Department of Plastic and Reconstructive Surgery, “Sapienza” University of Rome, Viale del Policlinico 151, 00161 Rome, Italy
3. Department of Plastic and Reconstructive Surgery, University of Sassari, Viale San Pietro 43b, 07100 Sassari, Italy