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. 2020 Jan 21;15:401–418. doi: 10.2147/IJN.S201208

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© 2020 Tian et al.

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Illustration indicating the potential role of natural killer (NK) cells in tumor immune surveillance and tumor immune response. Adapted with permission from Smyth MJ, Yoshihiro H, Kazuyoshi T, et al. New aspects of natural-killer-cell surveillance and therapy of cancer. Nature Reviews Cancer. 2002;2(11):850–861. Copyright © 2002, Springer Nature. https://www.nature.com/articles/nrc928.¹⁴³