1. Department of Oral and Maxillofacial Surgery/Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhonguancun South Road, Haidian District, Beijing 100081, China
2. State Key Laboratory of Membrane Biology, Biodynamic Optical Imaging Center (BIOPIC), School of Life Sciences, Peking University, 5 Yiheyuan Road, Beijing 100871, China
3. Biodynamic Optical Imaging Center (BIOPIC), School of Life Sciences, Peking University, Beijing 100871, China