Transfers to hospital in planned home birth in four Nordic countries - a prospective cohort study.Published in:2016By:Blix, Ellen;Kumle, Merethe H.;Ingversen, Karen;Huitfeldt, Anette S.;Hegaard, Hanne K.;Ólafsdóttir, Ólöf Á.;Øian, Pål;Lindgren, Helena;Ólafsdóttir, Ólöf Á;Øian, PålPublication type:journal article