Corrigendum: An in vivo fluorescence resonance energy transfer-based imaging platform for targeted drug discovery and cancer therapy - Xing, Fuqiang; Ai, Nana; Huang, Shigao; Jiang, Cheng; Mughal, Muhammad Jameel; Ge, Wei; Wang, Guanyu; Deng, Chu-Xia (Frontiers in Bioengineering and Biotechnology, 2022)