| Literature DB >> 75505 |
Abstract
Entities:
Keywords: Alpha Fetoproteins; Americas; Biology; Blood Proteins; Congenital Abnormalities; Cost Benefit Analysis; Delivery Of Health Care; Developed Countries; Diseases; Embryo; Evaluation; Examinations And Diagnoses; Fetus; Health; Health Services; Hemic System; Maternal Health Services; Maternal-child Health Services; National Health Services; Neonatal Diseases And Abnormalities; North America; Northern America; Physiology; Pregnancy; Primary Health Care; Quantitative Evaluation; Reproduction; United States
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Year: 1978 PMID： 75505 DOI： 10.1056/NEJM197803302981309
Source DB: PubMed Journal: N Engl J Med ISSN： 0028-4793 Impact factor: 91.245