We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleValidation and validity of diagnoses in the General Practice Research Database: a systematic review.AuthorsHerrett, Emily; Thomas, Sara L.; Schoonen, W. Marieke; Smeeth, Liam; Hall, Andrew J.PublicationBritish Journal of Clinical Pharmacology, 2010, Vol 69, Issue 1, p4ISSN0306-5251Publication typearticleDOI10.1111/j.1365-2125.2009.03537.x