换一批
换一批摘要The infant mortality rate of an area is a good index of the local health conditions. In our recent inquiry of 862 families in Kao-Chiao, a district of Greater Shanghai, it was found that out of 2,227 live births, 444 or 199.4 per mille children died under one year of age. A further analysis of the data discloses the following facts.
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栏目名称
Hygiene And Public Health
发布时间
2020-04-28
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