Media type: E-Article Title: Validation of asthma recording in electronic health records: protocol for a systematic review Contributor: Nissen, Francis; Quint, Jennifer K; Wilkinson, Samantha; Mullerova, Hana; Smeeth, Liam; Douglas, Ian J imprint: BMJ, 2017 Published in: BMJ Open Language: English DOI: 10.1136/bmjopen-2016-014694 ISSN: 2044-6055 Keywords: General Medicine Origination: Footnote: Access State: Open Access