Article: Landman AJEMC, de Boer MA, Visser L, et al. Evaluation of low-dose aspirin in the prevention of recurrent spontaneous preterm labour (the APRIL study): A multicentre, randomised, double-blinded, placebo-controlled trial. PLoS Med. 2022;19(2):e1003892. Published 2022 Feb 1. doi:10.1371/journal.pmed.1003892