We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleValidation of information recorded on general practitioner based computerised data resource in the United Kingdom.AuthorsJick, H; Jick, S S; Derby, L EPublicationBMJ, 1991, Vol 302, Issue 6779, p766ISSN0959-8138Publication typearticleDOI10.1136/bmj.302.6779.766