Intended for healthcare professionals

Letters

Reply from author of review

BMJ 1996; 312 doi: https://doi.org/10.1136/bmj.312.7046.1611 (Published 22 June 1996) Cite this as: BMJ 1996;312:1611

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 November 2021

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AbstractFullPdf
Jul 2003060
Aug 2003060
Sep 2003050
Oct 2003010
Nov 2003070
Dec 2003050
Jan 2004070
Feb 2004040
Mar 2004060
Apr 2004030
May 2004050
Jun 2004090
Jul 2004050
Aug 2004050
Sep 2004050
Oct 2004060
Nov 2004240
Dec 200419280
Jan 2005760
Feb 2005040
Mar 2005180
Jun 2005110
Jul 2005120
Aug 2005010
Oct 200531440
Nov 200524420
Dec 20055100
Jan 200625180
Feb 2006560
Mar 2006390
Apr 20061160
May 2006260
Jun 2006320
Jul 2006530
Aug 2006250
Sep 20065100
Oct 2006360
Nov 2006150
Dec 2006050
Jan 2007170
Feb 2007080
Mar 2007540
Apr 2007240
May 2007160
Jun 2007320
Jul 20073120
Aug 2007130
Sep 2007190
Oct 2007250
Nov 2007220
Dec 2007030
Jan 2008020
Feb 2008240
Mar 2008180
Apr 2008110
May 2008200
Jun 2008210
Jul 2008140
Aug 2008110
Sep 2008230
Oct 2008160
Nov 20082120
Dec 2008130
Jan 2009310
Feb 2009100
Mar 2009240
Apr 2009300
May 2009100
Jun 2009120
Jul 2009100
Aug 2009200
Oct 2009210
Nov 2009120
Dec 2009100
Jan 2010110
Feb 2010010
Mar 2010100
Apr 2010010
May 2010020
Jul 2010120
Aug 2010710
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Oct 2010100
Nov 2010210
Feb 2011120
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Jan 2013140
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Oct 2013100
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Jan 2014100
Feb 2014430
Apr 2014100
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Jul 2014020
Aug 2014100
Sep 2014100
Oct 2014400
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Apr 2015100
Jul 2015100
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Dec 2015130
Feb 2016120
Aug 2016400
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Nov 2016200
Feb 2017120
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Aug 2017700
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Oct 2017210
Nov 2017200
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Jan 2018200
Feb 2018100
Mar 2018200
Apr 2018200
May 2018700
Jul 2018100
Aug 2018200
Sep 2018100
Oct 2018200
Nov 2018220
Dec 2018300
Jan 20191110
Feb 20191000
Mar 20193110
Apr 2019500
May 20191200
Jun 2019910
Jul 2019300
Aug 2019200
Oct 2019120
Nov 2019110
Dec 2019330
Jan 2020210
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Apr 2020210
May 20202570
Jun 2020100
Jul 2020900
Aug 2020430
Sep 2020510
Oct 20202620
Nov 20202130
Dec 2020820
Jan 2021700
Feb 20211200
Mar 2021200
Apr 2021700
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Jun 2021400
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Sep 2021610
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Total6515410