Corrigendum: Ginsenoside Rb1 Enhances Atherosclerotic Plaque Stability by Improving Autophagy and Lipid Metabolism in Macrophage Foam Cells - Qiao, Lei; Zhang, Xue; Liu, Minghao; Liu, Xiaoling; Dong, Mei; Cheng, Jing; Zhang, Xinyu; Zhai, Chungang; Song, Yu; Lu, Huixia; Chen, Wenqiang (Frontiers in Pharmacology, 2018)