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Abstract
Mesh: See more » AdultAfrican Continental Ancestry GroupEducation, Medical, ContinuingFemaleHumansPregnancyPregnancy, Ectopic/etiologyRisk FactorsSmoking/adverse effects
Year: 1999 PMID: 10065302 PMCID: PMC2328263
Source DB: PubMed Journal: Can Fam Physician ISSN: 0008-350X Impact factor: 3.275