Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTriaging pregnancies of unknown location: the performance of protocols based on single serum progesterone or repeated serum hCG levels.AuthorsGuha, S; Ayim, F; Ludlow, J; Sayasneh, A; Condous, G; Kirk, E; Stalder, C; Timmerman, D; Bourne, T; Van Calster, BPublicationHuman Reproduction, 2014, Vol 29, Issue 5, p938ISSN0268-1161Publication typeJournal ArticleDOIhumrep/deu045