Intended for healthcare professionals

Editor's Choice

Breaking the embargo

BMJ 2008; 337 doi: https://doi.org/10.1136/bmj.a2852 (Published 04 December 2008) Cite this as: BMJ 2008;337:a2852

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: December 2008 to May 2021

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AbstractFullPdf
Dec 200860912211
Jan 200920580
Feb 200911431
Mar 20094251
Apr 2009480
May 20093140
Jun 200913170
Jul 2009670
Aug 20093160
Sep 2009290
Oct 20094150
Nov 2009080
Dec 2009360
Jan 2010490
Feb 20103110
Mar 2010370
Apr 2010240
May 2010090
Jun 20102060
Jul 2010890
Aug 2010560
Sep 20108161
Oct 2010282
Nov 2010370
Dec 201020220
Jan 201116240
Feb 20117130
Mar 20110100
Apr 2011070
May 2011490
Jun 2011490
Jul 20111130
Aug 20111180
Sep 20111670
Oct 20113140
Nov 2011890
Dec 20110120
Jan 20121160
Feb 2012300
Mar 20121200
Apr 20121010
May 2012300
Jun 2012210
Jul 2012100
Aug 20121140
Sep 2012070
Oct 2012030
Nov 2012060
Dec 2012050
Jan 2013050
Feb 2013050
Mar 20130100
Apr 2013040
May 20130160
Jun 20130220
Jul 2013090
Aug 2013070
Sep 20130190
Oct 20130240
Nov 20130210
Dec 20132170
Jan 20140250
Feb 20140160
Mar 20140310
Apr 20140310
May 20140330
Jun 20140320
Jul 20140150
Aug 20140160
Sep 2014090
Oct 20140130
Nov 2014090
Dec 20140160
Jan 20150160
Feb 20150110
Mar 20150120
Apr 20150130
May 2015030
Jun 20150160
Jul 20150120
Aug 2015070
Sep 2015080
Oct 20150100
Nov 20150160
Dec 20150350
Jan 20160230
Feb 20160271
Mar 20160250
Apr 20160230
May 20162570
Jun 20160220
Jul 20160190
Aug 20160140
Sep 20160130
Oct 2016040
Nov 20160160
Dec 2016070
Jan 20170210
Feb 20170190
Mar 20171180
Apr 20170180
May 20170200
Jun 20170160
Jul 2017060
Aug 2017080
Sep 20170220
Oct 2017070
Nov 2017060
Dec 2017080
Jan 20180490
Feb 20181380
Mar 20180100
Apr 20180150
May 2018090
Jun 2018050
Jul 2018040
Aug 20180170
Sep 2018090
Oct 2018020
Nov 20181120
Dec 20180180
Jan 20190120
Feb 2019090
Mar 2019050
Apr 2019150
May 2019220
Jun 2019020
Jul 2019040
Aug 2019030
Sep 2019030
Oct 2019070
Nov 2019090
Dec 2019090
Jan 20202120
Feb 2020190
Mar 2020090
Apr 2020070
May 20204320
Jun 2020060
Jul 20201110
Aug 20201160
Sep 20202150
Oct 20201430
Nov 20202460
Dec 20201180
Jan 20212150
Feb 20211130
Mar 20211130
Apr 20211150
May 2021010
Total94132417