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Abstract
Keywords: GENERAL PRACTICE; OBSTETRICS; PREGNANCY; STATISTICS
Mesh: See more » BiometryFamily PracticeFemaleGeneral PracticeHumansObstetricsPregnancyStatistics as Topic
Year: 1964 PMID: 14212090 PMCID: PMC1878348
Source DB: PubMed Journal: J Coll Gen Pract ISSN: 0307-4749