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The unpredictability paradox: review of empirical comparisons of randomised and non-randomised clinical trials

BMJ 1998; 317 doi: https://doi.org/10.1136/bmj.317.7167.1185 (Published 31 October 1998) Cite this as: BMJ 1998;317:1185

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 2003528872
Aug 2003436879
Sep 2003359159
Oct 2003397059
Nov 2003468642
Dec 2003527161
Jan 2004497669
Feb 2004376282
Mar 2004519595
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May 2004678878
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Jul 200410811459
Aug 20049811267
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Dec 20048811069
Jan 20055712158
Feb 20054511582
Mar 2005527473
Apr 20054990109
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Jun 2005337255
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Aug 2005274960
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Oct 2005239394
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Mar 2006478265
Apr 2006386247
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Aug 2008373052
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Apr 2010655551
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Aug 2012116213
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May 20132749
Jun 20131905
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Jan 20141615
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May 20140888
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Jul 201532312
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Jul 201671488
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Feb 201916419
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Aug 20191117428
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Oct 2019227725
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Jan 2020278226
Feb 20201810412
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Apr 2020173523
May 20202816424
Jun 2020204240
Jul 2020220521
Aug 2020212212
Sep 2020210714
Oct 2020415732
Nov 202047510
Dec 202037615
Jan 202117422
Feb 202115711
Mar 202106621
Apr 20210178
Total5022165617418