1. a Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
2. b National Tissue Engineering Center of China, Shanghai, People's Republic of China
3. c Department of Anesthesiology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
4. d Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong, People's Republic of China
5. e College of Materials Science and Engineering, Hunan University, Changsha, Hunan, People's Republic of China