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Abstract
Mesh: See more » Chorionic Gonadotropin/urineFemaleHumansPregnancyPregnancy, Ectopic/diagnosisPregnancy, Tubal/diagnosis
Substances: See more » Chorionic Gonadotropin
Year: 1990 PMID: 2271843 PMCID: PMC1664394
Source DB: PubMed Journal: BMJ ISSN: 0959-8138