How big is the time window for cell-free fetal DNA testing after pregnancy loss and which factors are associated with a successful result? - El Sammaa-Aru, Yasmin Isabella; Hartwig, Tanja Schlaikjær; Bro-Jørgensen, Maiken Hemme; Münter, Emma Juuel; Werge, Lene; Banasik, Karina; Stener Jørgensen, Finn; Ambye, Louise; Westergaard, David; Nielsen, Henriette Svarre; Kirks Foundation; BioInnovation Institute Foundation; et al. (Human Reproduction ; ISSN 0268-1161 1460-2350, 2026)