1. Ear reconstruction center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Bejing, People’s Republic of China
2. Department of Medical Cosmetology, Jining No. 1 People’s Hospital, Jining, Shandong, People’s Republic of China
3. Unit of Plastic and Reconstructive Surgery, Hospital S Maria Alle Scotte, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy