Jakobsson, M The incidence of preterm deliveries decreases in Finland. [electronic resource] - BJOG : an international journal of obstetrics and gynaecology Jan 2008 - 38-43 p. digital Publication Type: Journal Article ISSN: 1471-0528 Standard No.: 10.1111/j.1471-0528.2007.01565.x doi Subjects--Topical Terms: FemaleFinland--epidemiologyHumansIncidencePregnancyPremature Birth--epidemiologyRisk Factors