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BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b2047 (Published 20 May 2009) Cite this as: BMJ 2009;338:b2047

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 April 2021

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AbstractFullPdf
May 20093764370
Jun 200936440
Jul 200913210
Aug 2009470
Sep 2009440
Oct 2009220
Nov 2009100
Dec 2009510
Jan 2010120
Feb 2010410
Mar 2010100
Apr 2010130
May 2010020
Jun 2010020
Jul 2010310
Aug 20103100
Sep 2010110
Oct 2010300
Nov 2010200
Dec 2010100
Jan 2011310
Feb 2011200
Mar 2011200
Apr 2011100
May 2011200
Jun 2011310
Jul 2011110
Aug 2011400
Sep 2011200
Oct 2011400
Nov 2011100
Dec 2011210
Jan 2012400
Feb 2012100
Apr 2012100
May 2012120
Jun 2012110
Jul 2012100
Sep 2012300
Nov 2012200
Jan 2013110
Feb 2013100
Apr 2013100
May 2013010
Jun 2013700
Jul 2013310
Aug 2013310
Sep 2013100
Oct 2013100
Dec 2013100
Feb 2014010
Mar 2014100
May 2014200
Jun 2014110
Jul 2014060
Aug 2014300
Dec 2014100
Jan 2015010
Feb 2015100
Apr 2015200
Jul 2015200
Aug 2015050
Sep 2015100
Nov 2015010
Dec 2015320
Jan 2016100
Feb 2016300
Apr 2016100
May 2016200
Jun 2016110
Aug 2016110
Sep 2016400
Oct 2016010
Nov 2016100
Dec 2016300
Jan 2017100
Feb 2017300
Mar 2017200
Apr 2017200
May 2017500
Jun 2017400
Jul 2017310
Aug 2017500
Sep 2017400
Oct 2017730
Nov 2017310
Dec 2017510
Jan 20182900
Feb 20183510
Mar 2018300
Apr 2018300
May 2018510
Jun 2018200
Jul 2018300
Aug 2018200
Sep 2018100
Oct 2018100
Nov 2018120
Dec 2018300
Jan 2019500
Feb 2019510
Mar 2019410
Apr 2019800
May 2019010
Jun 2019100
Jul 2019100
Aug 2019300
Sep 2019010
Oct 2019320
Nov 2019500
Dec 2019340
Jan 2020720
Feb 2020620
Mar 2020110
Apr 2020400
May 2020230
Jun 2020500
Jul 2020810
Aug 2020120
Sep 20201740
Oct 20203200
Nov 20202120
Dec 20201120
Jan 2021730
Feb 2021300
Mar 2021700
Apr 2021700
Total8646110