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In brief

BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b1214 (Published 25 March 2009) Cite this as: BMJ 2009;338:b1214

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: March 2009 to February 2021

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AbstractFullPdf
Mar 2009907170
Apr 20095327910
May 20091017460
Jun 2009315520
Jul 2009334300
Aug 2009338910
Sep 2009423130
Oct 2009113110
Nov 20090570
Dec 20091360
Jan 20102350
Feb 20101310
Mar 20101440
Apr 20106330
May 20104310
Jun 20100320
Jul 20101310
Aug 20103110
Sep 2010210
Oct 2010200
Nov 2010200
Dec 2010100
Jan 2011940
Feb 2011400
Mar 2011100
Apr 2011210
May 2011300
Jun 2011200
Jul 20111200
Aug 20111600
Sep 20111100
Oct 20111400
Nov 2011700
Dec 2011500
Jan 2012400
May 2012100
Jun 2012100
Jul 2012200
Nov 2012310
Jan 2013030
Mar 2013300
Jun 2013500
Jul 2013500
Aug 2013310
Sep 2013100
Oct 2013200
Nov 2013100
Dec 2013200
Feb 2014100
Mar 2014100
Apr 2014100
May 2014100
Jul 2014060
Aug 2014200
Feb 2015100
Apr 2015200
Jul 2015100
Aug 2015040
Sep 2015100
Dec 2015210
Feb 2016100
Aug 2016110
Sep 2016100
Oct 2016100
Dec 2016200
Feb 2017300
Mar 2017100
Apr 2017200
May 2017500
Jun 2017500
Jul 2017700
Aug 2017300
Sep 2017400
Oct 2017300
Dec 2017600
Jan 2018100
Feb 2018600
Mar 2018100
Apr 2018100
May 2018220
Jun 20181200
Jul 2018300
Aug 2018200
Sep 2018700
Oct 2018300
Nov 2018410
Dec 2018450
Jan 2019610
Feb 2019900
Mar 20191510
Apr 20191000
May 20191100
Jun 20191100
Jul 2019530
Aug 2019380
Sep 2019450
Oct 2019350
Nov 2019420
Dec 20198110
Jan 2020510
Feb 2020260
Mar 2020160
Apr 2020140
May 2020780
Jun 2020720
Jul 20203760
Aug 2020360
Sep 2020750
Oct 20203750
Nov 20203010
Dec 2020920
Jan 2021710
Feb 2021500
Total663182120