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BMJ 2001; 322 doi: https://doi.org/10.1136/bmj.322.7281.256 (Published 03 February 2001) Cite this as: BMJ 2001;322:256

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: July 2003 to May 2022

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AbstractFullPdf
Jul 2003080
Aug 20030162
Sep 2003061
Oct 2003020
Nov 20030100
Dec 20030100
Jan 20040160
Feb 2004070
Mar 20041111
Apr 20040170
May 20040110
Jun 20042120
Jul 2004040
Aug 20040130
Sep 20043181
Oct 20040104
Nov 20044150
Dec 200422310
Jan 20056231
Feb 2005120
Mar 20057142
Apr 2005371
May 2005230
Jun 2005330
Jul 2005242
Aug 20053152
Sep 20052124
Oct 20051210
Nov 2005362
Dec 2005220
Jan 2006110
Feb 2006281
Mar 2006130
Apr 2006270
May 2006281
Jul 2006020
Aug 2006010
Sep 20061104
Oct 2006031
Nov 2006022
Dec 2006143
Jan 2007221
Feb 2007041
Mar 2007050
Apr 2007044
May 2007071
Jun 2007130
Jul 2007051
Aug 2007221
Sep 2007332
Oct 2007062
Nov 2007312
Dec 2007010
Jan 2008133
Feb 2008050
Mar 2008011
Apr 2008011
May 2008153
Jun 2008022
Jul 2008020
Aug 2008021
Sep 2008020
Oct 2008140
Nov 2008492
Dec 2008025
Jan 2009100
Feb 2009110
Mar 2009100
Apr 2009111
Jun 2009111
Jul 2009210
Aug 2009110
Sep 2009300
Nov 2009202
Dec 2009110
Jan 2010331
Mar 2010010
May 2010010
Jun 2010220
Jul 2010150
Aug 2010313
Sep 2010420
Oct 2010400
Nov 2010421
Mar 2011021
Apr 2011300
May 2011010
Jun 2011001
Jul 2011200
Aug 2011211
Sep 2011011
Oct 2011301
Nov 2011111
Dec 2011020
Jan 2012410
Feb 2012400
Mar 2012300
Apr 2012300
Jun 2012300
Jul 2012420
Oct 2012500
Nov 2012100
Dec 2012010
Jan 2013332
Feb 2013100
Mar 2013300
May 2013111
Jun 2013220
Jul 2013241
Aug 2013221
Sep 2013111
Oct 2013221
Nov 2013421
Dec 2013300
Feb 2014100
Mar 2014200
May 2014241
Jun 2014200
Jul 2014042
Sep 2014110
Jan 2015100
Mar 2015100
Apr 2015300
May 2015100
Jun 2015100
Jul 2015200
Aug 2015200
Oct 2015400
Dec 2015321
Jan 20163500
May 2016200
Jun 2016400
Jul 2016300
Aug 2016400
Sep 2016300
Oct 2016100
Nov 2016500
Dec 2016600
Jan 2017100
Feb 2017211
Mar 2017920
Apr 2017300
May 2017100
Jun 2017500
Jul 2017400
Aug 2017300
Sep 2017400
Oct 2017400
Nov 2017210
Dec 2017610
Jan 2018500
Feb 2018300
Mar 2018300
Apr 2018300
May 2018721
Aug 2018200
Sep 2018100
Oct 2018100
Nov 2018330
Dec 20181040
Jan 2019510
Feb 20191010
Mar 20191430
Apr 2019800
May 2019900
Jun 20191500
Jul 2019460
Aug 2019170
Sep 2019040
Oct 2019330
Nov 2019320
Dec 2019390
Jan 2020330
Feb 2020140
Mar 2020060
Apr 2020350
May 20202760
Jun 2020230
Jul 2020440
Aug 2020170
Sep 20201380
Oct 20201740
Nov 2020910
Dec 2020910
Jan 2021610
Feb 2021500
Mar 2021810
Apr 2021500
May 2021300
Jun 2021110
Jul 2021210
Aug 2021700
Sep 2021700
Oct 2021500
Nov 2021100
Dec 20211100
Jan 2022300
Feb 20221420
Mar 2022800
Apr 2022100
May 2022701
Total62163098