Second Trimester Sunlight and Asthma: Evidence from Two Independent Studies
收藏NBER2014-10-01 更新2025-01-04 收录
下载链接：
https://www.nber.org/papers/w20599
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资源简介：
One in twelve Americans suffers from asthma and its annual costs are estimated to exceed $50 billion. Simultaneously, the root causes of the disease remain unknown. A recent hypothesis speculates that maternal vitamin D levels during pregnancy affect the probability the fetus later develops asthma.
提供机构：
美国国家经济研究局
创建时间：
2014-10-01
