不同每搏变异度指导的液体治疗对老年全膝关节置换患者止血带相关低血压的影响 
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Effect of fluid therapy guided by different stroke variation on tourniquet⁃related⁃ hypotension in elderly patients undergoing total knee arthroplasty

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实用医学杂志 . 2022, (22): 2817 -2821 .  DOI: 10.3969/j.issn.1006⁃5725.2022.22.010