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Editorials

Clinical trial registration

BMJ 2007; 334 doi: https://doi.org/10.1136/bmj.39233.510810.80 (Published 07 June 2007) Cite this as: BMJ 2007;334:1177

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: June 2007 to November 2019

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AbstractFullPdf
Jun 20071441663333
Jul 2007105137
Aug 200782310
Sep 200710155
Oct 2007131610
Nov 2007353
Dec 2007557
Jan 200813417
Feb 200810183
Mar 20084259
Apr 200851010
May 20081073
Jun 20089169
Jul 2008122827
Aug 200815396
Sep 20084284
Oct 20086155
Nov 20087317
Dec 20081209
Jan 20097121
Feb 20094102
Mar 20099131
Apr 2009993
May 20094156
Jun 2009795
Jul 20091479
Aug 2009584
Sep 2009663
Oct 2009273
Nov 2009371
Dec 2009610
Jan 20102283
Feb 2010533
Mar 2010053
Apr 2010121
May 2010043
Jun 2010220
Jul 2010222
Aug 2010400
Sep 2010522
Oct 2010601
Nov 2010413
Dec 2010620
Jan 2011410
Feb 2011532
Mar 2011411
Apr 2011220
May 2011411
Jun 2011110
Jul 2011201
Aug 2011431
Sep 2011232
Oct 2011111
Nov 2011430
Dec 2011530
Jan 2012751
Feb 2012610
Mar 2012471
Apr 2012500
May 2012521
Jun 2012322
Jul 2012611
Aug 2012621
Sep 2012610
Oct 2012852
Nov 2012931
Dec 2012511
Jan 2013532
Feb 2013200
Mar 20131210
Apr 20131160
May 2013510
Jun 20131771
Jul 2013832
Aug 2013411
Sep 2013640
Oct 2013500
Nov 20132410
Dec 2013700
Jan 20141041
Feb 20141231
Mar 20141400
Apr 20141530
May 20141611
Jun 2014920
Jul 20142250
Aug 20141310
Sep 20141322
Oct 2014912
Nov 20141130
Dec 20142610
Jan 20151520
Feb 20151240
Mar 2015610
Apr 2015850
May 20151373
Jun 20151010
Jul 20151323
Aug 20151630
Sep 20151662
Oct 20151261
Nov 201540196
Dec 20152502
Jan 20164811
Feb 20161120
Mar 20161200
Apr 2016900
May 20161000
Jun 2016900
Jul 2016920
Aug 20161220
Sep 2016730
Oct 2016810
Nov 20161830
Dec 2016910
Jan 20171110
Feb 2017930
Mar 2017630
Apr 2017620
May 2017921
Jun 2017362
Jul 2017931
Aug 20171621
Sep 20171262
Oct 20171220
Nov 2017910
Dec 2017820
Jan 20181540
Feb 20181320
Mar 20181250
Apr 20181130
May 2018970
Jun 20181361
Jul 2018340
Aug 20181200
Sep 2018510
Oct 20181141
Nov 2018220
Dec 20181000
Jan 2019320
Feb 2019700
Mar 2019620
Apr 20191120
May 2019520
Jun 20191220
Jul 2019210
Aug 2019440
Sep 2019821
Oct 2019710
Nov 2019910
Total14342477624