Authors: Floortje Vlemmix; Lester Bergenhenegouwen; Jelle M Schaaf; Sabine Ensing; Ageeth N Rosman; Anita C J Ravelli; Joris A M Van Der Post; Arno Verhoeven; Gerard H Visser; Ben W J Mol; Marjolein Kok Journal: Acta Obstet Gynecol Scand Date: 2014-09 Impact factor: 3.636