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Title
Validation and validity of diagnoses in the General Practice Research Database: a systematic review.
Authors
Herrett, Emily; Thomas, Sara L; Schoonen, W Marieke; Smeeth, Liam; Hall, Andrew J
Abstract
To investigate the range of methods used to validate diagnoses in the General Practice Research Database (GPRD), to summarize findings and to assess the quality of these validations.
Publication
British journal of clinical pharmacology, 2010, Vol 69, Issue 1, p4