Identifying Only Children in Four British Birth Cohort Studies, 2022
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Stata code to derive a variable to identify only children – i.e. individuals without siblings – in four British birth cohorts: • 1946 MRC National Survey of Health and...
用于生成变量以识别四个英国出生队列中独生子女（即无兄弟姐妹的个体）的Stata代码：• 1946年英国医学研究理事会（Medical Research Council，MRC）全国健康与……调查
