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Zheng XY, Pan Y, Chen K, Gao JQ, Cai XJ.Zheng XY, et al. Among authors: gao jq.Chin Med J (Engl). 2018 Mar 20;131(6):713-720. doi: 10.4103/0366-6999.226899.Chin Med J (Engl). 2018.PMID: 29521295Free PMC article.
Qian Y, Liu H, Pan J, Yu W, Lv J, Yan J, Gao J, Wang X, Ge X, Zhou W.Qian Y, et al.World J Surg Oncol. 2021 Jan 23;19(1):25. doi: 10.1186/s12957-021-02132-6.World J Surg Oncol. 2021.PMID: 33485347Free PMC article.