title: [What is causing preterm delivery?].
authors.affiliation: HYKS:n naistenklinikka PL 140, 00029 Helsinki. minnamaija.kekki@hus.fi
authors.forename: Minnamaija
authors.initials: M
authors.lastname: Kekki
authors.forename: Jorma
authors.initials: J
authors.lastname: Paavonen
mesh_terms: D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007752:Obstetric Labor, Premature / Q000209:etiology* / Q000517:prevention & control; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis / Q000517:prevention & control; D011295:Prenatal Care / Q000592:standards; D012307:Risk Factors