RETRACTION: W. Zhao, L. Jia, X. kuai, Q. Tang, X. Huang, T. Yang, Z. Qiu, J. Zhu, J. Huang, W. Huang, and Z. Feng, “The Role and Molecular Mechanism of Trop2 Induced Epithelial‐Mesenchymal Transition Through Mediated β‐catenin in Gastric Cancer,” Cancer Medicine 8, no. 3 (2019): 1135–1147, https://doi.org/10.1002/cam4.1934. Here, TACSTD2 is linked to gastric cancer.