Rasmussen MK, Kristensen SE, Ekelund CK, Sandager P, et al. Quadruplet pregnancy outcomes with and without fetal reduction: Danish national
cohort study 2008-2018 and comparison with dichorionic twins. Ultrasound Obstet Gynecol 2023 Sep 24. doi: 10.1002/uog.27497.
PMID: 37743648