Study design of a stepped wedge cluster randomized controlled trial to evaluate the effect of a locally tailored approach for preconception care - the APROPOS-II study.Published in:2020By:Maas, Veronique Y F;Koster, Maria P H;Ista, Erwin;Vanden Auweele, Kim L H;de Bie, Renate W A;de Smit, Denhard J;Visser, Bianca C;van Vliet-Lachotzki, Elsbeth H;Franx, Arie;Poels, MarjoleinPublication type:journal article