Seasonal pattern of preterm birth in the Netherlands: A population-based retrospective cohort study. - de Klerk, Nadine D.; de Vries, Ivar R.; Berben, Phebe B. Q.; Fransen, Annemarie F.; van der Ven, Myrthe; Vullings, Rik; van der Hout-van der Jagt, M. Beatrijs; Oei, S. Guid; van Laar, Judith O. E. H. (PLoS ONE, 2025)