RETRACTION: D.Yang, H.Qian, Z.Fang, A.Xu, S.Zhao, B.Liu and D.Li, “Silencing Circular RNA VANGL1 Inhibits Progression of Bladder Cancer by Regulating miR‐1184/IGFBP2 Axis,” Cancer Medicine9, no. 2 (2020): 700–710, 10.1002/cam4.2650. This evidence concerns the gene IGFBP2 and urinary bladder cancer.