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Wen, Zunjia; Xie, Ailing; Peng, Mingqi; Bian, Lanzheng; Wei, Li; Li, Mei . (2019). Is discard better than return gastric residual aspirates: a systematic review and meta-analysis. BMC Gastroenterology, 19(1), 113–. doi:10.1186/s12876-019-1028-7 

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