Jakobsson, M.; Tapper, A.M.; Colmorn, L.B.; Lindqvist, P.G.; Klungsøyr, K.; Krebs, L.; Børdahl, P.E.; Gottvall, K.; Källén, K.; Bjarnadóttir, R.I.; Langhoff-Roos, J.; Gissler, M.
Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland
doi: 10.1097/01.aoa.0000482599.41747.bb
