Rationalizing the management of pregnancies of unknown location: temporal and external validation of a risk prediction model on 1962 pregnancies

Abstract

B.V.C. is supported by a postdoctoral fellowship from the Research Foundation Flanders (FWO). K.V.H. is supported by a fellowship from the Flanders' Agency for Innovation by Science and Technology (IWT-Vlaanderen), by the Research Council KU Leuven (GOA MaNet), by the Flemish Government (iMinds) and by the Belgian Federal Science Policy Office (IUAP P7/DYSCO). T.B. is supported by the Imperial Healthcare NHS Trust NIHR Biomedical Research Centre. No competing interests are declared.