SEASONALITY IN TWIN BIRTH-RATES, DENMARK, 1936-84

被引:16
作者
BONNELYKKE, B [1 ]
SOGAARD, J [1 ]
NIELSEN, J [1 ]
机构
[1] AARHUS UNIV, INST SOCIAL MED, DK-8000 AARHUS, DENMARK
关键词
D O I
10.1136/jech.41.4.338
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
引用
收藏
页码:338 / 343
页数:6
相关论文
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