选择标准：比较对照和钙通道阻断剂围移植手术期给药的随机对照试验入选。半随机对照试验被排除。
SELECTION CRITERIA: Randomised controlled trials comparing calcium channel blockers given in the peri-transplant period with controls were included. Quasi-randomised trials were excluded.
我们也排除了半随机对照研究和使用交叉设计的试验。
We also excluded quasi-randomised trials and trials using a cross-over design.
纳入的研究类型为随机对照试验和半随机对照实验，实验内容为羟甲基淀粉对比替代液体疗法预防和治疗有效血容量减少。
Randomised controlled trials (RCTs) and quasi-RCTs in which HES was compared to an alternate fluid therapy for the prevention or treatment of effective intravascular volume depletion.
纳入的研究类型为随机对照试验和半随机对照实验，实验内容为羟甲基淀粉对比替代液体疗法预防和治疗有效血容量减少。
Randomised controlled trials (RCTs) and quasi-RCTs in which HES was compared to an alternate fluid therapy for the prevention or treatment of effective intravascular volume depletion.
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