方法：本研究采用分层随机抽样方法和整群随机抽样方法。
Methods: The stratified sampling and cluster random sampling methods are used in this survey.
方法采用分层随机抽样的方法，对东部沿海某市18~60岁外来务工人员进行问卷调查，收集艾滋病知识和行为的信息，并采集静脉血进行艾滋病病毒抗体检测。
Methods The migrant workers aged 18~60 in one east city were chosen by stratified random sampling, and surveyed by a questionnaire about knowledge, behavior of AIDS, and blooded to test HIV antibody.
方法采用单纯随机抽样方法，对无锡市1010名流动人口和240名当地人群进行问卷调查。
Methods With simple random sampling, 1010 floating population and 240 local people in Wuxi were interviewed by questionnaire.
方法采用分层整群随机抽样方法，询问调查抽中的广州市1级、2级和3级医院的一线临床医生。
Methods a questionnaire survey was conducted among the clinical doctors selected by stratified cluster random sampling from grade 1, 2 and 3 hospitals in Guangzhou.
方法对社区人群采用多阶段分层整群随机抽样方法抽取研究对象，进行个案调查和血清学检测。
Methods Subjects were collected from community population by stratified multi-stage cluster sampling method. The data gathered from case investigation and serological detection.
方法采用随机抽样方法，对我院500名医务人员在2005年利用病案的目的、利用频率和利用满意度进行问卷调查。
Methods a questionnaire was sent to total of 500 medical workers in random to ask the purpose, frequency and satisfaction of using medical records in our hospital in 2005.
方法采用统一设计的调查表格，按照国家标准GB4789.1- 94和GB4789.2 - 94检验方法随机抽样进行菌落总数和大肠杆菌测定。
Methods Adopt specially designed investigation form, random samples according to GB4789.1-94 and GB4789.2-94, determining the total of bacterium and coli form.
方法采用随机抽样的方法和自编的居民健康状况调查表、WHO 的核心神经行为测试法调查接触移动电话电磁辐射组96 人，对照组43 人。
Methods 96 mobile telephone users and 43 controls were investigated by using civilian health questionnaire compiled by ourselves and WHO Neurobehavior Core Battery(NCTB).
方法：对保定市及周边县城消费者进行随机抽样问卷调查，采用t检验、方差分析和LSD - t检验等方法对调查数据进行统计学处理。
METHODS: Random sample questionnaire survey was conducted among consumers in Baoding city and its surrounding counties, and the data were subjected tot-test, analysis of variance, and LSD-t test.
采用随机抽样的方法，对海院140名教职工进行了体质测定和评价。
By means of random sampling, the physique of 140 people surveyed and evaluated. out of the staff and workers in Zhejiang Ocean University.
方法随机抽样分为治疗组和对照组，治疗组采用黄芪静脉点滴法，观察其对血浆蛋白、血脂的影响。
Method Patients were divided randomly into the treatment group and the control group. The treatment group was given infusion of RMM by intravenous drip.
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 Stratified random cluster sampling was used, 9 township hospitals were randomly selected from Beihu District, Suxian District and Guiyang County of Chenzhou.
方法 采用分层抽样和随机抽样方法对15家 医疗机构和2 937名疟区居民进行流行病学调查。
Method 15 hospitals and 2 937 residents were selected and studied through random and systematic sampling methods in Hainan Province.
方法采用多阶段分层随机抽样方法，选取了400例正常儿童和25例孤独症儿童为研究对象。
Methods: With the multistage stratified sampling, we randomly selected 400 normal children and 25 autism children as study samples.
方法采用多阶段分层随机抽样方法，选取了400例正常儿童和25例孤独症儿童为研究对象。
Methods: With the multistage stratified sampling, we randomly selected 400 normal children and 25 autism children as study samples.
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