RETRACTION: Y. Xu, Y. Gao, Z. Huang, Y. Zheng, W. Teng, D. Zheng, and X. Zheng, “LKB1 Suppresses Androgen Synthesis in a Mouse Model of Hyperandrogenism via IGF‐1 Signaling,” FEBS Open Bio 9, no. 10 (2019): 1817‐1825, https://doi.org/10.1002/2211‐5463.12723. This evidence concerns the gene IGF1 and hyperandrogenism.