Huusom Lene Drasbek, Brok Jesper, Hegaard Hanne K, Pryds Ole, Secher Niels Joergen
Department of Gynecology and Obstetrics, Hvidovre Hospital, Copenhagen University Hospitals, Hvidovre, Denmark.
Acta Obstet Gynecol Scand. 2012 Nov;91(11):1346-7. doi: 10.1111/aogs.12018.