Vaccination has a preventive effect.

种了一次牛痘,起预防作用.

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Objective To observe the preventive effect of sequential dialysis on hypotension associated with hemodialysis.

目的观察序贯透析在预防血液透析相关性低血压的效果.

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Conclusion: The pit and fissure sealant have significant preventive effect on carious teeth.

结论: 窝沟封闭能有效预防窝沟龋的发生.

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Objective To study the preventive effect of ofloxacin and chymotrypsin on post - operative peritoneal adhesion.

目的探讨氧氟沙星、糜蛋白酶腹腔灌注对污染手术后腹腔粘连的预防作用.

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Objective To study the preventive effect of azathioprine on chronic cerebral vasospasm ( CVS ) .

目的观察免疫抑制药物对慢性 脑血管 痉挛的预防作用.

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Objective To observe the preventive effect of L arginine on the HD DDP induced acute nephrotoxicity.

目的:观察L精氨酸预防大剂量顺铂急性肾毒性的临床疗效.

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