Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePropensity-matching analysis is not straightforward.AuthorsChevret, SylviePublicationAmerican Journal of Respiratory & Critical Care Medicine, 2014, Vol 190, Issue 4, p362ISSN1073-449XPublication typeJournal ArticleDOI10.1164/rccm.201406-0996ED