Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleValidation of ICD-9-CM codes to identify gastrointestinal perforation events in administrative claims data among hospitalized rheumatoid arthritis patients.AuthorsCurtis, Jeffrey R.; Chen, Shih-Yin; Werther, Winifred; John, Ani; Johnson, David A.PublicationPharmacoepidemiology & Drug Safety, 2011, Vol 20, Issue 11, p1150ISSN1053-8569Publication typeArticleDOI10.1002/pds.2215