| Literature DB >> 6986017 |
S F Bottoms, M G Rosen, R J Sokol.
Abstract
Keywords: Americas; Birth Rate--changes; Birth Weight; Delivery--complications; Demographic Factors; Developed Countries; Diseases; Fertility; Fertility Measurements; Health Services; North America; Northern America; Population; Population Dynamics; Pregnancy; Pregnancy Complications; Pregnancy Outcomes; Reproduction; Surgery; Treatment; United States
Mesh:
Year: 1980 PMID: 6986017 DOI: 10.1056/NEJM198003063021006
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245