Nieboer Theodoor E, Aarts Johanna W M
Department of Obstetrics and Gynecology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands Department of Obstetrics and Gynecology, Gelderse Vallei Hospital, Ede, The Netherlands.
Obstet Gynecol. 2014 Jun;123(6):1357-1358. doi: 10.1097/AOG.0000000000000311.