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In brief

BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b2017 (Published 19 May 2009) Cite this as: BMJ 2009;338:b2017

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: May 2009 to May 2021

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AbstractFullPdf
May 20091092080
Jun 200917250
Jul 20093130
Aug 2009200
Sep 2009870
Oct 2009430
Nov 2009500
Dec 2009300
Jan 2010100
Feb 2010010
Mar 2010020
May 2010010
Jun 2010020
Jul 2010210
Aug 2010210
Oct 2010200
Nov 2010210
Dec 20101530
Jan 20111620
Feb 2011620
Apr 2011310
May 2011200
Jun 2011810
Jul 20111100
Aug 20112700
Sep 20113700
Oct 20111200
Nov 2011500
Dec 2011200
Jan 2012400
Mar 2012060
May 2012120
Jun 2012200
Sep 2012300
Jan 2013110
Mar 2013100
Jun 2013700
Jul 2013400
Aug 2013110
Oct 2013100
Nov 2013100
Dec 2013100
Jan 2014100
Feb 2014100
Mar 2014100
May 2014100
Jun 2014200
Jul 2014010
Sep 2014300
Feb 2015100
Apr 2015200
Jul 2015100
Aug 2015120
Sep 2015300
Nov 2015010
Dec 2015030
Feb 2016100
Mar 2016100
Sep 2016200
Oct 2016200
Nov 2016200
Dec 2016200
Jan 2017100
Feb 2017110
Mar 2017100
Apr 2017100
May 2017300
Jun 2017300
Jul 2017400
Aug 2017300
Sep 2017400
Oct 20171210
Nov 2017200
Dec 2017200
Jan 2018300
Feb 2018400
Mar 2018800
Apr 2018110
May 20181100
Jun 20181300
Jul 2018100
Sep 2018200
Nov 2018110
Dec 2018230
Jan 2019520
Feb 2019900
Mar 20191310
Apr 2019800
May 2019700
Jun 20191200
Jul 2019640
Aug 2019890
Sep 2019340
Oct 2019260
Nov 2019520
Dec 20190110
Jan 2020310
Feb 2020360
Mar 2020170
Apr 2020050
May 2020280
Jun 2020720
Jul 2020650
Aug 2020450
Sep 20202640
Oct 20202660
Nov 20202900
Dec 2020700
Jan 2021400
Feb 2021400
Mar 2021800
Apr 2021600
May 2021300
Total6583860