Epidemiologic Reports, Surveys
Colmorn, L.B.; Petersen, K.B.; Jakobsson, M.; Lindqvist, P.G.; Klungsoyr, K.; Källen, K.; Bjarnadottir, R.I.; Tapper, A.M.; Børdahl, P.E.; Gottvall, K.; Thurn, L.; Gissler, M.; Krebs, L.; Langhoff-Roos, J.
Department of Obstetrics, Rigshospitalet Copenhagen University Hospital/University of Copenhagen, Copenhagen, Denmark
doi: 10.1097/01.aoa.0000482604.64549.f3