1. School of Biomedical Engineering , Sun Yat-sen University , Guangzhou , Guangdong , People’s Republic of China
2. Department of Burn and Plastic Surgery , Shenzhen Institute of Translational Medicine , Shenzhen , Guangdong , People’s Republic of China
3. School of Life Sciences , Sun Yat-sen University , Guangzhou , Guangdong , People’s Republic of China
4. The Center for Drug Research and Development , Guangdong Pharmaceutical University , Guangzhou , Guangdong , People’s Republic of China
5. Section of Human Histology & Embryology, Department of Surgery, Dentistry, Pediatrics & Obstetrics , University of Verona , Verona , Venetia , Italy