RT Journal Article SR Electronic T1 How to reduce diagnostic error: ‘neutral zone’ approach JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP bmjebm-2019-111324 DO 10.1136/bmjebm-2019-111324 A1 Thomas R Fanshawe A1 Maria Vazquez-Montes YR 2020 UL http://ebm.bmj.com/content/early/2020/02/14/bmjebm-2019-111324.abstract AB