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Abstract
Entities: Species
Keywords: VITAL STATISTICS
Mesh: See more » FemaleHumansMultiple Birth OffspringPregnancyPregnancy, MultipleSex DistributionVital Statistics
Year: 1952 PMID: 14954148 PMCID: PMC1037317 DOI: 10.1136/jech.6.3.192
Source DB: PubMed Journal: Br J Soc Med ISSN: 0366-0842