de Vaan, M. D.T.Blel, D.Bloemenkamp, K. W.M.Jozwiak, M.ten Eikelder, M. L.G.de Leeuw, J. W.Oudijk, M. A.Bakker, J. J.H.Rijnders, R. J.P.Papatsonis, D. N.Woiski, M.Mol, B. W.de Heus, R.2021-03-052021-03-052021-02de Vaan, M D T, Blel, D, Bloemenkamp, K W M, Jozwiak, M, ten Eikelder, M L G, de Leeuw, J W, Oudijk, M A, Bakker, J J H, Rijnders, R J P, Papatsonis, D N, Woiski, M, Mol, B W & de Heus, R 2021, 'Induction of labor with Foley catheter and risk of subsequent preterm birth : follow‐up study of two randomized controlled trials (PROBAAT‐1 and ‐2)', Ultrasound in Obstetrics and Gynecology, vol. 57, no. 2, pp. 292-297. https://doi.org/10.1002/uog.231170960-7692PubMedCentral: PMC7898639https://hdl.handle.net/2164/15979Acknowledgements We thank all the women who participated in the PROBAAT trials and all participating institutions and their staff for their contribution to this follow-up study. Funding The original PROBAAT-2 trial was funded by FondsNutsOhra. For the PROBAAT-1 trial and this follow-up study, no funding was received. MV received a doctoral grant for teachers by the Netherlands Organisation for Scientific Research (023.011.051). BM is supported by a NHMRC Practitioner Fellowship (GNT1082548). Funding sources had no role in design, execution, analyses, interpretation, or decision to submit results.61156396engballooncervical ripeningFoley catheterinduction of laborpreterm birthRG Gynecology and obstetricsRadiological and Ultrasound TechnologyObstetrics and GynaecologyRadiology Nuclear Medicine and imagingReproductive MedicineMedical Research Council (MRC)GNT1082548RGJournal article10.1002/uog.23117http://www.scopus.com/inward/record.url?scp=85100241669&partnerID=8YFLogxK572