"MARITAL STATUS"@en . . "Osler" . "LONGITUDINAL STUDIES"@en . "Educational inequalities"@en . "12f65f19d6aaa702eba2da76b185ef2b" . "Preterm birth"@en . "SOCIAL EPIDEMIOLOGY"@en . "Merete Osler" . "Merete" . "Cross-cohort collaboration"@en . . "EMPLOYED CG"@en . "European pregnancy birth cohort"@en . "Health inequalities"@en .