We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePrevention of exacerbations of chronic obstructive pulmonary disease with tiotropium.AuthorsO'Connor ABPublicationAnnals of internal medicine, 2006, Vol 144, Issue 2, p148ISSN1539-3704Publication typearticleDOI10.7326/0003-4819-144-2-200601170-00022