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Article Citation
Hao T, Liu Q, Lv X, Qiu J, Zhang HR, Jiang HP. Efficacy and safety of early oral feeding in postoperative patients with upper gastrointestinal tumor: A systematic review and meta-analysis. World J Gastrointest Surg 2021; 13(7): 717-733 [PMID: 34354804 DOI: 10.4240/wjgs.v13.i7.717]
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