Intended for healthcare professionals

Education And Debate Statistics notes

How to randomise

BMJ 1999; 319 doi: https://doi.org/10.1136/bmj.319.7211.703 (Published 11 September 1999) Cite this as: BMJ 1999;319:703

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 January 2020

Rendering graph...
AbstractFullPdf
Jul 20030196107
Aug 20030205107
Sep 20030273115
Oct 20030303139
Nov 20030286175
Dec 2003021585
Jan 20041269236
Feb 20040226184
Mar 20040296172
Apr 20040221134
May 20040302153
Jun 20045317136
Jul 20040329135
Aug 20045286156
Sep 20040263118
Oct 20045345186
Nov 200414321133
Dec 200427361135
Jan 200514243138
Feb 200511284149
Mar 200517373182
Apr 20054366251
May 20054229186
Jun 20054275196
Jul 20052214140
Aug 200510214131
Sep 20059287162
Oct 200510313201
Nov 20055318196
Dec 20058191108
Jan 20067229136
Feb 20068250141
Mar 20065287200
Apr 20066213145
May 20066255150
Jun 20068285163
Jul 20064225140
Aug 20063271176
Sep 20063282130
Oct 20069381225
Nov 20066371204
Dec 20069211105
Jan 20079322144
Feb 2007218799
Mar 20075248132
Apr 20075233100
May 20073254136
Jun 20079247106
Jul 2007217992
Aug 2007418978
Sep 20075206115
Oct 20076303147
Nov 200716288249
Dec 20077212121
Jan 200825278145
Feb 200819325127
Mar 200818270142
Apr 20085287126
May 20088334200
Jun 20085285143
Jul 2008321797
Aug 200814204103
Sep 20089272134
Oct 200812289143
Nov 200820252305
Dec 20089229222
Jan 200957163129
Feb 200972148124
Mar 200983173103
Apr 2009103157126
May 20098912896
Jun 20097214196
Jul 20094310796
Aug 20095010582
Sep 200968100109
Oct 200988217150
Nov 200987188367
Dec 20096287125
Jan 201087129158
Feb 20105912270
Mar 201068192136
Apr 201060219128
May 201085147121
Jun 201011713592
Jul 2010147170101
Aug 2010115169102
Sep 2010187169110
Oct 2010269185114
Nov 2010375177111
Dec 201025613387
Jan 201134020296
Feb 2011292163102
Mar 2011327187118
Apr 2011245139110
May 201121214679
Jun 2011139109109
Jul 2011106133102
Aug 201131241102
Sep 201125224103
Oct 201121319168
Nov 20111024996
Dec 2011017230
Jan 2012819236
Feb 2012163306105
Mar 201213520086
Apr 201213311753
May 20126116858
Jun 2012329139
Jul 20124911042
Aug 20123510241
Sep 2012508837
Oct 201215913173
Nov 20121357829
Dec 2012615118
Jan 2013507118
Feb 20135914440
Mar 20134912038
Apr 2013738029
May 2013849947
Jun 2013696325
Jul 20136410346
Aug 2013778840
Sep 2013767026
Oct 201312710846
Nov 201313614062
Dec 20131118228
Jan 20141098118
Feb 201415721377
Mar 201411923776
Apr 201413110247
May 20141248935
Jun 20148310538
Jul 201409945
Aug 201499749
Sep 201409667
Oct 201408420
Nov 2014034475
Dec 2014019862
Jan 2015019685
Feb 20150295183
Mar 20150454414
Apr 20150184116
May 20150184103
Jun 20150135103
Jul 201508754
Aug 2015012782
Sep 2015012659
Oct 2015014556
Nov 2015121763
Dec 2015017357
Jan 2016019257
Feb 20160279104
Mar 20160182113
Apr 2016015871
May 20160245106
Jun 2016120460
Jul 2016110234
Aug 2016312553
Sep 2016311356
Oct 20161206114
Nov 20160186105
Dec 2016114851
Jan 2017016951
Feb 2017119666
Mar 2017022083
Apr 2017020077
May 2017019275
Jun 2017015256
Jul 2017011245
Aug 2017013751
Sep 2017013654
Oct 2017016064
Nov 2017015961
Dec 2017016754
Jan 2018015452
Feb 2018517753
Mar 2018422779
Apr 2018016576
May 2018016370
Jun 2018318482
Jul 2018111650
Aug 2018012947
Sep 2018212556
Oct 2018115750
Nov 2018217668
Dec 2018116139
Jan 2019121063
Feb 2019119380
Mar 2019013046
Apr 2019218470
May 2019720580
Jun 2019116259
Jul 2019011939
Aug 2019313847
Sep 2019112837
Oct 2019116773
Nov 2019016971
Dec 2019114133
Jan 202008632
Total77463851220274