Xu T, Cheng D, Zhao Y, Zhang J, Zhu X, Zhang F, Chen G, Wang Y, Yan X, Robertson GP, Gaddameedhi S, Lazarus P, Wang S, Zhu J. Polymorphic tandem DNA repeats activate the human telomerase reverse transcriptase gene. Proc. Natl. Acad. Sci. U.S.A. 2021 Jun 21;118(26). doi: 10.1073/pnas.2019043118.