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Abstract
Keywords: INFANT, PREMATURE/statistics; LABOR; PRENATAL CARE
Mesh: See more » Biomedical ResearchFemaleHumansInfant, NewbornInfant, Premature/statistics & numerical dataLabor, ObstetricPregnancyPrenatal CareWork
Year: 1953 PMID: 13112223 PMCID: PMC1918701
Source DB: PubMed Journal: Proc R Soc Med ISSN: 0035-9157