Data on causative pathogens were available from a few studies only and highlighted the importance of Gram-negative rods, particularly in surgical site infection and ventilator-associated pneumonia.
仅有几项研究提供了有关病原体数据并且强调了革兰氏阴性杆菌的重要性，特别是在手术部位感染和呼吸机相关肺炎研究中提供了上述数据。
Results We provided a statistical method(scatter gram, F-test)to repeated data and non-repeated data.
结果针对有重复和无重复两种资料，提出了散点图轮廓判断法和F检验法。
The key problem in N-gram method is the problem of sparse data which still can not be solved effectively now.
但是随着研究深入，出现稀疏数据成像问题，无法用传统方法重建清晰图像。
Method with a retrospective statistical review, all the Gram-negative bacilli clinically isolated from 1999 to 2003 in our hospital were analyzed together with the clinical data.
方法采用回顾性统计方法对该院1999～2003年间临床分离革兰阴性杆菌进行统计、总结和分析。
Method with a retrospective statistical review, all the Gram-negative bacilli clinically isolated from 1999 to 2003 in our hospital were analyzed together with the clinical data.
方法采用回顾性统计方法对该院1999～2003年间临床分离革兰阴性杆菌进行统计、总结和分析。
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