Corrigendum: Combination Treatment of Icariin and L-DOPA Against 6-OHDA-Lesioned Dopamine Neurotoxicity - Lu, Di-Sheng; Chen, Ce; Zheng, Ya-Xin; Li, Dai-Di; Wang, Guo-Qing; Liu, Jie; Shi, Jingshan; Zhang, Feng (Frontiers in Molecular Neuroscience, 2020)