布依族7~18岁学生1985年及2000年体质状况数据比较:随机整群抽样4679人的横断面调查分析
포의족7~18세학생1985년급2000년체질상황수거비교:수궤정군추양4679인적횡단면조사분석
Physical fitness of Bouyei nationality students aged 7-18 years in 1985 versus in 2000: Crosssectional study in 4 679 cases by randomized clustering
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