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This document is a correction notice for an article titled "Circ-ZEB1 promotes PIK3CA expression by silencing miR-199a-3p and affects the proliferation and apoptosis of hepatocellular carcinoma" published in the journal Molecular Cancer. The correction addresses two errors in the figures of the original article, specifically a typo in the subscript of the X-axis in Fig. 1B and an incorrect image in Fig. 3C. The authors provide the correct figures and state that these errors do not affect the overall results and conclusions of the study. The corrected figures show the expression of circ-ZEB1 and PIK3CA in hepatocellular carcinoma tissues and cells, as well as the effects of circ-ZEB1 downregulation on cell proliferation. The correction notice is authored by Weiwei Liu, Lu zheng, Rongguiyi Zhang, Ping Hou, Jiakun Wang, Linquan Wu, and Jing Li. [Extracted from the article]