Inconsistent Definitions for Intention-To-Treat in Relation to Missing Outcome Data: Systematic Review of the Methods Literature Alshurafa, Mohamad ; Briel, Matthias ; Akl, Elie A. ; Haines, Ted ; Moayyedi, Paul ; Gentles, Stephen J. ; Rios, Lorena ; Tran, Chau ; Bhatnagar, Neera ; Lamontagne, Francois ; Walter, Stephen D. ; Guyatt, Gordon H. Abstract Publication: PLoS ONE Pub Date: November 2012 DOI: 10.1371/journal.pone.0049163 Bibcode: 2012PLoSO...749163A