منابع مشابه
Perinatal Mortality
Sophisticated peoples have a low fertility and great concern for the welfare of their children. Their low birth rate is due to deliberate family limitation; besides planned parenthood, their desire for better living standards leads to emancipation of women, and later marriages. A century ago in Britain, when conditions of infant life were appalling, no less than 15 out of every 100 live born in...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1964
ISSN: 0035-9157
DOI: 10.1177/003591576405700641