Time to Delivery after the First Course of Antenatal Corticosteroids: A Cohort Study - Vis, Jolande Y; Wilms, Femke F; Kuin, Rosanna A; Reuvers, Janine M; Stam, Monique C; Pattinaja, Desiree A.P.M.; Mol, Ben Willem J (American Journal of Perinatology, 2011)