INFLUENCE OF BIRTH ORDER AND MATERNAL AGE ON THE HUMAN SEX RATIO AT BIRTH

被引:1
作者
Macmahon, Brian [1 ]
Pugh, Thomas F. [1 ]
机构
[1] Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
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D O I
暂无
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
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页码:83 / 86
页数:4
相关论文
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