Adopting random cluster sampling.
采用随机整群抽样。
DESIGN: a stratified random cluster sampling investigation.
设计：分层整群抽样调查。
Methods: Stratified random cluster sampling method was used to determine the survey sample.
方法：以分层随机整群抽样的方法，确定调查样本。
Preschool students were selected by random cluster sampling from Songgang street of Bao an district in Shenzhen city.
采用随机整群抽样的方法，对深圳市宝安区松岗街道的学龄前儿童进行视力测查及影响因素调查。
MethodsThrough random cluster sampling, 699 convoying warship soldiers were investigated with Symptom Check-List 90 (SCL-90).
方法采用随机整群抽样法抽取699名护航舰队官兵，用症状自评量表(SCL- 90)对其进行心理测评。
METHODS: A total of 478 children at age of 9-12 years from Tulufan City and Buerjin County of Xinjiang Province were enrolled by random cluster sampling.
方法：分别在新疆吐鲁番市区和布尔津县两地采用随机整群抽样的方法，抽取9~12岁儿童478名。
Methods By the random cluster sampling method, 860 students were selected and investigated about AIDS with a questionnaire before and after the education.
方法采取随机整群抽样方法，在健康教育开展前后抽取860名大学生匿名进行问卷调查。
Methods Stratified random cluster sampling was used, 9 township hospitals were randomly selected from Beihu District, Suxian District and Guiyang County of Chenzhou.
方法采用分层整群随机抽样的方法，在郴州市随机抽取北湖区、苏仙区和桂阳县的9所乡镇卫生院作为调查现场。
Methods 112 patients with maintenance hemodialysis were selected by random cluster sampling in Xuzhou First People's Hospital and were assessed by life satisfaction scale questionnaire.
方法采用随机整群抽样的方式抽取徐州市第一人民医院112例进行维持性血液透析的患者，应用生活满意度量表进行问卷调查。
Methods: By using questionnaires with multistage stratified random cluster sampling method, 726 valid questionnaires of 800 were backed from the university students in 4 universities in Dalian city.
对象与方法：研究对象采取分层整群随机抽样的方法，在大连市4所高校大一、大四年级学生中发放问卷800份，收回有效问卷726份。
DESIGN: Random cluster sampling methods and a cross-section survey.
设计：随机整群抽样，横断面调查。
The genetic resources of South Shaanxi white goats are examined with the method of Stratified Random Cluster sampling.
以系统随机整群抽样法对陕南白山羊进行了遗传资源的抽样检测。
The genetic resources of South Shaanxi white goats are examined with the method of Stratified Random Cluster sampling.
以系统随机整群抽样法对陕南白山羊进行了遗传资源的抽样检测。
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