%0 Journal Article %T Retraction Note: Overexpression of A613T and G462T variants of DNA polymerase ¦Â weakens chemotherapy sensitivity in esophageal cancer cell lines %A Guoqiang Zhao %A Min Li %A Qianqian Sun %A Wenqiao Zang %A Xiaonan Chen %A Yuanyuan Wang %A Ziming Dong %J Archive of "Cancer Cell International". %D 2019 %R 10.1186/s12935-019-0814-1 %X Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6452508/