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Greving, JP; Schonewille, WJ; Wijman, CA; Michel, P; Kappelle, LJ; Algra, A; BASICS, Study Group (2012). Predicting outcome after acute basilar artery occlusion based on admission characteristics. Neurology, 2012(78), pp. 1058-63. Hagerstown, Md.: Lippincott Williams & Wilkins
Dekkers, O M; von Elm, E; Algra, A; Romijn, J A; Vandenbroucke, J P (2010). How to assess the external validity of therapeutic trials: a conceptual approach. International journal of epidemiology, 39(1), pp. 89-94. Oxford: Oxford University Press 10.1093/ije/dyp174
