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. 2012 Sep 21;2(5):e001790. doi: 10.1136/bmjopen-2012-001790

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© 2012, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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Relative Index of Inequality (RII) for general health questionnaire caseness as assessed by education level and area-level deprivation (index for multiple deprivation) 1991–2010.