Intended for healthcare professionals

Editor's Choice

A tough nut to crack

BMJ 2005; 330 doi: https://doi.org/10.1136/bmj.330.7485.0-h (Published 27 January 2005) Cite this as: BMJ 2005;330:0-h

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: January 2005 to January 2021

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AbstractFullPdf
Jan 200502517184
Feb 20050897133
Mar 2005010611
Apr 20050436
May 20050373
Jun 20050391
Jul 20050132
Aug 20050171
Sep 20050252
Oct 20050193
Nov 20050252
Dec 20050111
Jan 20060227
Feb 200601616
Mar 200601510
Apr 20060132
May 20060182
Jun 20060122
Jul 2006063
Aug 2006062
Sep 2006086
Oct 2006042
Nov 20060510
Dec 2006075
Jan 20070145
Feb 2007263
Mar 2007189
Apr 20071106
May 2007384
Jun 20073133
Jul 2007355
Aug 2007594
Sep 20075816
Oct 20071149
Nov 20071101
Dec 2007004
Jan 2008152
Feb 2008045
Mar 2008064
Apr 2008292
May 2008285
Jun 20081157
Jul 2008196
Aug 2008062
Sep 2008354
Oct 20083112
Nov 20083116
Dec 2008137
Jan 2009256
Feb 2009022
Mar 2009123
Apr 2009137
May 2009122
Jun 2009252
Jul 20092123
Aug 2009577
Sep 2009455
Oct 20091123
Nov 2009245
Dec 2009235
Jan 2010312
Feb 2010220
Mar 2010360
Apr 2010052
May 2010184
Jun 2010031
Jul 2010242
Aug 2010251
Sep 2010263
Oct 2010292
Nov 2010355
Dec 201012151
Jan 201116175
Feb 20118122
Mar 2011013
Apr 2011336
May 2011472
Jun 2011461
Jul 2011434
Aug 201110104
Sep 2011551
Oct 2011343
Nov 2011032
Dec 2011080
Jan 2012810
Feb 2012210
Mar 2012110
Apr 2012100
May 2012221
Jun 2012300
Jul 2012100
Aug 2012112
Sep 2012041
Oct 2012051
Nov 2012050
Dec 2012020
Feb 2013091
Mar 2013010
Apr 2013280
May 20130340
Jun 20130251
Jul 20132122
Aug 2013090
Sep 2013051
Oct 2013051
Nov 2013030
Dec 2013190
Jan 20140183
Feb 20140150
Mar 20140201
Apr 20140111
May 20140151
Jun 20140210
Jul 20140172
Aug 2014051
Sep 20140117
Oct 2014040
Nov 2014071
Dec 2014092
Jan 2015042
Feb 2015048311
Mar 20150504
Apr 20150426
May 20151103
Jun 2015060
Jul 20150102
Aug 20150224
Sep 20150176
Oct 2015080
Nov 20150133
Dec 20150171
Jan 20160220
Feb 20160162
Mar 20160226
Apr 20160122
May 20160173
Jun 20161376
Jul 20160120
Aug 20161201
Sep 20161144
Oct 2016080
Nov 2016080
Dec 2016164
Jan 20170204
Feb 20170151
Mar 20170221
Apr 20170291
May 20170362
Jun 20170120
Jul 20170141
Aug 2017060
Sep 20170111
Oct 20170221
Nov 20170111
Dec 20170142
Jan 2018081
Feb 20180150
Mar 20182121
Apr 2018080
May 20180121
Jun 20180110
Jul 20180100
Aug 2018060
Sep 2018070
Oct 2018020
Nov 20180130
Dec 20180132
Jan 2019071
Feb 2019070
Mar 2019122
Apr 20191182
May 20192152
Jun 2019092
Jul 2019092
Aug 2019025
Sep 2019001
Oct 2019081
Nov 20190185
Dec 2019041
Jan 2020042
Feb 2020120
Mar 2020021
Apr 2020071
May 2020072
Jun 20200332
Jul 2020064
Aug 2020090
Sep 20201141
Oct 2020061
Nov 20200405
Dec 20200180
Jan 20211101
Total1926045807