1. Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
2. Department of Dermatology, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P. R. China
3. Department of Radiation, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, P. R. China