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Letters

Trial protocols: time for more than tinkering

BMJ 2005; 330 doi: https://doi.org/10.1136/bmj.330.7488.421-b (Published 17 February 2005) Cite this as: BMJ 2005;330:421

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: February 2005 to February 2021

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AbstractFullPdf
Feb 20051268880
Mar 200536681
Apr 20057270
May 20057180
Jun 20058290
Jul 20055160
Aug 200510220
Sep 20053120
Oct 20053130
Nov 20055100
Dec 2005240
Jan 2006740
Feb 2006670
Mar 20065110
Apr 2006460
May 20062150
Jun 20065100
Jul 2006260
Aug 20063130
Sep 20066130
Oct 20064100
Nov 20060170
Dec 20062100
Jan 20072150
Feb 2007150
Mar 20073120
Apr 2007190
May 2007490
Jun 2007380
Jul 2007370
Aug 2007150
Sep 2007350
Oct 2007350
Nov 2007080
Dec 2007240
Jan 2008170
Feb 2008050
Mar 2008121
Apr 2008040
May 2008030
Jun 2008330
Jul 2008280
Aug 2008460
Sep 2008330
Oct 2008140
Nov 2008430
Jan 2009270
Feb 2009020
Mar 2009120
Apr 2009200
May 2009200
Jun 2009240
Jul 2009330
Aug 2009010
Sep 2009720
Oct 2009100
Nov 2009410
Dec 2009020
Jan 2010500
Feb 2010310
Mar 2010160
Apr 2010100
May 2010100
Jul 20102100
Aug 2010440
Sep 2010600
Oct 2010700
Nov 2010400
Dec 2010430
Feb 2011010
Apr 2011240
May 2011100
Jun 2011120
Jul 2011430
Aug 2011110
Sep 2011110
Oct 2011240
Dec 2011070
Jan 2012110
Mar 2012100
Apr 2012100
Jun 2012300
Jul 2012300
Aug 2012100
Nov 2012200
Feb 2013010
Mar 2013100
Jun 2013410
Jul 2013540
Aug 2013100
Sep 2013200
Oct 2013110
Nov 2013100
Dec 2013200
Jan 2014010
Feb 2014100
Apr 2014200
Jun 2014300
Jul 2014030
Aug 2014110
Sep 2014020
Nov 2014100
Dec 2014010
Feb 2015100
Mar 2015130
Apr 2015410
May 2015800
Jun 2015600
Jul 2015010
Aug 2015020
Sep 2015350
Oct 2015210
Nov 2015544641
Dec 2015221811
Jan 2016801
Feb 2016621
Mar 2016500
Jul 2016600
Aug 2016300
Sep 2016300
Oct 2016300
Nov 2016420
Dec 2016700
Jan 2017500
Feb 2017610
Mar 2017500
Apr 2017300
May 2017800
Jun 2017300
Jul 2017200
Aug 2017400
Sep 2017110
Oct 2017500
Nov 2017500
Dec 2017400
Jan 2018600
Feb 2018500
Mar 2018210
Apr 20181010
May 2018600
Jun 2018410
Jul 2018300
Aug 2018300
Sep 2018200
Oct 2018400
Nov 2018110
Dec 2018400
Jan 201913460
Feb 20192500
Mar 2019310
Apr 2019710
May 2019400
Jun 2019400
Jul 2019100
Aug 2019200
Sep 20191100
Oct 20191200
Nov 2019310
Dec 2019100
Jan 2020700
Feb 2020420
Apr 2020200
May 2020510
Jun 2020200
Jul 20201200
Aug 2020220
Sep 2020900
Oct 20202910
Nov 20202600
Dec 20201600
Jan 2021800
Feb 2021400
Total994155856