Intended for healthcare professionals

Education And Debate

Ethical issues in the design and conduct of cluster randomised controlled trials

BMJ 1999; 318 doi: https://doi.org/10.1136/bmj.318.7195.1407 (Published 22 May 1999) Cite this as: BMJ 1999;318:1407

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 April 2021

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AbstractFullPdf
Jul 200302717
Aug 200302610
Sep 200303115
Oct 200314713
Nov 200303721
Dec 200303519
Jan 200404329
Feb 20040289
Mar 200405322
Apr 200414926
May 200424629
Jun 200455623
Jul 200426125
Aug 200435722
Sep 200425220
Oct 200464033
Nov 200445028
Dec 2004206918
Jan 20051110087
Feb 20051013787
Mar 2005157335
Apr 200565237
May 200525542
Jun 200576438
Jul 2005154428
Aug 200545113
Sep 200516840
Oct 200577125
Nov 200535622
Dec 200535021
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Mar 200656433
Apr 200653919
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Jun 200654217
Jul 200622210
Aug 200624013
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Oct 200642324
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Feb 20073199
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Apr 200732813
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Jun 2007104017
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Aug 20071309
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Nov 20078457
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Jan 200854623
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Mar 200874728
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May 2008125727
Jun 20087428
Jul 20088317
Aug 200831448
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Jan 2009833025
Feb 20091393024
Mar 20091323732
Apr 20091704021
May 2009591716
Jun 2009402810
Jul 2009862029
Aug 2009861812
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Oct 20091221720
Nov 20091271512
Dec 2009664016
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Dec 2010791516
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Apr 2016673612
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Aug 201661147
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Oct 201684154
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Apr 201860296
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Jan 201969183
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Mar 2019933810
Apr 2019141377
May 20191512413
Jun 2019862212
Jul 201983164
Aug 201987293
Sep 201978225
Oct 201986197
Nov 2019804813
Dec 201972168
Jan 202077338
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Mar 202059171
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May 20201253012
Jun 20204087
Jul 2020142176
Aug 202078153
Sep 202079204
Oct 2020139186
Nov 202096255
Dec 2020102515
Jan 202159263
Feb 2021107194
Mar 202186184
Apr 20213974
Total1178070683229