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. 2013 May 3;3(5):e002378. doi: 10.1136/bmjopen-2012-002378

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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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Flow chart showing the selection of pharmacological groups included in the specific analyses on sex and gender differences in different therapeutic areas. ¹Cardiac therapy (C01), agents acting on the renin–angiotensin system (C09), sex hormones (G03), urologicals (G04), analgesics (N02), psycholeptics (N05), psychoanaleptics (N06) and ophthalmologicals (S01). ²Volume was measured in Defined Daily Doses (DDDs), except for eight ATC groups without any assigned DDD values where packages were used instead.