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[2]Ozawa K, Davey MG, Tian Z, et al. Evaluation of umbilical venous flow volume measured using ultrasound compared to circuit flow volume in the EXTra-uterine Environment for Neonatal Development (EXTEND) system in fetal sheep. Prenat Diagn. 2021;41(13):1668-1674. doi:10.1002/pd.6041

[3]van Haren JS, Delbressine FLM, Schoberer M, et al. Transferring an extremely premature infant to an extra-uterine life support system: a prospective view on the obstetric procedure. Front Pediatr. 2024;12:1360111. Published 2024 Feb 15. doi:10.3389/fped.2024.1360111

[4]https://www.fda.gov/advisory-committees/pediatric-advisory-committee/presentations-september-19-2023-meeting-pediatric-advisory-committee

[5]https://www.newscientist.com/article/mg26034712-400-premature-babies-could-be-treated-with-an-artificial-uterus-in-2024/