
Sufficient exercise: mother’s perceptions on neighbourhood safety and quality of outdoor playgrounds in Rotterdam
Marije van der Hulst, Loes C.M Bertens, Hanneke de Graaf, Eric A.P. Steegers

Problem identification in highly vulnerable pregnant women with multiple social and medical problems
Marijke de Groot, Marije van der Hulst, Hanneke de Graaf, Loes Bertens