Corrigendum: Acute Administration of Metformin Protects Against Neuronal Apoptosis Induced by Cerebral Ischemia-Reperfusion Injury via Regulation of the AMPK/CREB/BDNF Pathway - Liu, Ke; Li, Lulu; Liu, Zhijun; Li, Gang; Wu, Yanqing; Jiang, Xingjun; Wang, Mengdie; Chang, Yanmin; Jiang, Tingting; Luo, Jianheng; Zhu, Jiahui; Li, Hongge; et al. (Frontiers in Pharmacology, 2022)