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1 Multistage sampling in forest inventory is not restricted to fixed - area sampling units.
2 Methods With cluster multistage sampling, 3 221 college students from 5 universities in Jiangsu Province were interviewed by use of questionnaire.
3 Methods Multistage sampling and stratified sampling were used and information was gathered by interview with questionnaires.
4 The coefficient optimization for the multistage sampling rate conversion is also presented.
5 Methods We interviewed 7302 families by using stratified multistage sampling in 40 counties of 5 provinces in western China.
6 Methods Cluster,[www.Sentencedict.com] stratified and multistage sampling was taken. 1261 residents over 40 years old were assigned to fill in the questionnaires designed by WHO.
7 Methods A questionnaire was conducted among target population by multistage sampling.
8 Methods A total of 550 students in 4 junior schools were sampled with multistage sampling and surveyed.
9 Methods 1080 rural residents in Chaoyang City were selected as respondents by multistage sampling.
10 In this paper, the estimation of prevalence and it's variance calculating are discussed when clustering sampling, multistage sampling and stratified sampling being used simultaneously.
11 Methods: Morph genesis, function, nutritional status and occurred common diseases of 5737 school children and adolescents aged 6-13 in the region were surveyed with cluster multistage sampling method.
12 Methods: 2807 subjects were randomly selected from four districts in Anshan by multistage sampling method.
13 Methods 612 men of the elderly aged 45 years or over were sampled by the method of multistage sampling, being assessed with the scale of PADAM self-evaluation of symptoms.
14 Methods Elderly people aged 65 years or over by multistage sampling in 8 cities of Shandong Province were interviewed at home by trained interviewer.
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