We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffect of warfarin on activated partial thromboplastin time in patients receiving heparin.AuthorsKearon C; Johnston M; Moffat K; McGinnis J; Ginsberg JSPublicationArchives of internal medicine, 1998, Vol 158, Issue 10, p1140ISSN0003-9926Publication typearticleDOI10.1001/archinte.158.10.1140