title: The Danish national birth cohort - a valuable tool for pharmacoepidemiology in pregnancy.
authors.affiliation: The Danish Epidemiology Science Centre at the Institute of Epidemiology and Social Medicine, University of Aarhus, Høegh Guldbergsgade 10, DK-8000 Aarhus C, Denmark.
authors.forename: J
authors.initials: J
authors.lastname: Olsen
authors.forename: H T
authors.initials: HT
authors.lastname: Sørensen