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Abstract
Keywords: PREGNANCY/diagnosis; PREGNANCY/duration
Mesh: See more » FemaleHematologic TestsHumansPregnancy/diagnosis
Year: 1947 PMID: 17835152 DOI: 10.1126/science.105.2724.292
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728