| Literature DB >> 5536949 |
Abstract
Entities:
Keywords: Abortion, Spontaneous--etiology; Animals, Laboratory; Clinical Research; Demographic Factors; Diseases; Fetal Death--etiology; Implantation; Mortality; Population; Population Dynamics; Pregnancy; Pregnancy Complications; Pregnancy, First Trimester; Reproduction; Research Methodology
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Year: 1970 PMID: 5536949 DOI: 10.1007/bf00673618
Source DB: PubMed Journal: Arch Gynakol ISSN: 0003-9128