primary data.xls
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资源简介：
This is a cross-sectional study. We conducted a face-to-face questionnaire survey from July 2014 to October 2014 involving 4,232 women who were at childbearing age in Suizhong, a medium-sized, representative county located in Northern China.A total of 22 villages from Suizhong County were investigated in this survey. This study was approved by the regional ethical committee.
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Pingping Li创建时间：
2016-05-05
