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. 2018 Aug 17;8(8):e021125. doi: 10.1136/bmjopen-2017-021125

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© Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Flow of participants through the study. Baseline patient interviews were conducted from May 2007 to November 2009; 12-month interviews were conducted from August 2008 to December 2010. CAMCOG, Cambridge Cognitive Examination; GP, general practitioner.