| Literature DB >> 4439034 |
Abstract
Keywords: Abortion, Spontaneous; Age Factors; Americas; Blacks; Cultural Background; Demographic Factors; Developed Countries; Developing Countries; Diseases; Ethnic Groups; Fertility; Fertility Measurements; Maternal Age; Measurement; North America; Northern America; Parental Age; Parity; Population; Population Characteristics; Population Dynamics; Pregnancy Complications; Research Methodology; United States; Whites
Mesh:
Year: 1974 PMID: 4439034 DOI: 10.1080/19485565.1974.9988106
Source DB: PubMed Journal: Soc Biol ISSN: 0037-766X