The study is really fascinating to look at although it's limited by the sampling procedure.
这项研究是很有意思的，尽管它受到取样方法的限制。
Do you have an ongoing evaluation procedure and a corresponding ranking for suppliers? Is the sampling procedure linked with the ranking?
您对供应商有持续性的评估程序以及相应的评级吗？取样的程序与(供应商)评级有关联吗？
Method: 362 cases of Lizu elderly people who were investigated by a random sampling procedure were interviewed by using MOS SF-36 questionnaire.
方法：采用随机、整群抽样的方法，应用生命质量量表（SF-36健康量表），对五指山市362名黎族老年人进行入户问卷调查。
Methods: By a cluster sampling procedure, 181 hemodialysis patients from 4 hemodialysis centers in Hangzhou completed the SF 36 Scales with self administration.
方法：采用整群抽样法，用SF -36量表对杭州市4家血透中心的181例血透患者进行自评量表式调查。
Methods: By a cluster sampling procedure, 181 hemodialysis patients from 4 hemodialysis centers in Hangzhou completed the SF 36 Scales with self administration.
方法：采用整群抽样法，用SF -36量表对杭州市4家血透中心的181例血透患者进行自评量表式调查。
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