We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRisk prediction models: II. External validation, model updating, and impact assessmentAuthorsMoons, Karel G M; Kengne, Andre Pascal; Grobbee, Diederick E; Royston, Patrick; Vergouwe, Yvonne; Altman, Douglas G; Woodward, MarkPublicationHeart, 2012, Vol 98, Issue 9, p691ISSN1355-6037Publication typearticleDOI10.1136/heartjnl-2011-301247