The effect of early oral feeding in patients with acute non-variceal upper gastrointestinal bleeding：a systematic review and Meta-analysis
ZHU Rui, WANG Zhuzhu, ZHANG Qiaoxian, ZHUANG Jiayuan
Chinese Journal of Nursing . 2023, (3): 334 -341 .  DOI: 10.3761/j.issn.0254-1769.2023.03.011

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