Intended for healthcare professionals

Editorials

Clinical guidelines

BMJ 1997; 315 doi: https://doi.org/10.1136/bmj.315.7104.324 (Published 09 August 1997) Cite this as: BMJ 1997;315:324

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 June 2021

Rendering graph...
AbstractFullPdf
Jul 20030290
Aug 20030260
Sep 20030250
Oct 20030340
Nov 20030290
Dec 20030390
Jan 20040280
Feb 20040240
Mar 20040290
Apr 20040210
May 20040380
Jun 20040400
Jul 20041430
Aug 20040220
Sep 20040310
Oct 20040300
Nov 20043400
Dec 200419440
Jan 200513450
Feb 20051480
Mar 20051490
Apr 20050260
May 20052210
Jun 20051110
Jul 20050120
Aug 20050170
Sep 20051150
Oct 20050180
Nov 20053260
Dec 20052200
Jan 20060250
Feb 20060240
Mar 20063350
Apr 20061260
May 20060210
Jun 20060210
Jul 20060110
Aug 2006290
Sep 20060100
Oct 20060160
Nov 20061270
Dec 20060120
Jan 20071260
Feb 20070270
Mar 20071340
Apr 20070380
May 20070240
Jun 20070290
Jul 20070160
Aug 20070100
Sep 20071140
Oct 20070160
Nov 20071180
Dec 20070200
Jan 20081170
Feb 20080180
Mar 20082290
Apr 20082190
May 20080140
Jun 20080100
Jul 20080200
Aug 20080150
Sep 20080130
Oct 20084200
Nov 20081170
Dec 2008080
Jan 2009130
Feb 20093110
Mar 20092170
Apr 2009130
May 2009340
Jun 2009380
Jul 2009560
Aug 2009240
Sep 2009050
Oct 2009170
Nov 2009580
Dec 2009280
Jan 2010430
Feb 2010210
Mar 2010640
Apr 2010380
May 2010100
Jun 2010380
Jul 2010550
Aug 2010440
Sep 2010650
Oct 2010310
Nov 2010460
Dec 2010300
Jan 2011410
Feb 2011740
Mar 2011440
Apr 2011670
May 2011330
Jun 2011430
Jul 2011420
Aug 2011360
Sep 2011390
Oct 2011450
Nov 2011060
Dec 2011030
Jan 2012530
Feb 2012400
Mar 2012520
Apr 2012320
May 2012270
Jun 2012630
Jul 2012120
Aug 20122800
Sep 2012100
Oct 20121000
Nov 2012510
Dec 2012100
Jan 2013120
Feb 2013610
Mar 2013210
Apr 2013300
May 2013120
Jun 2013520
Jul 2013500
Aug 2013320
Sep 2013200
Oct 2013240
Nov 2013540
Dec 2013530
Jan 2014310
Feb 2014420
Mar 2014020
Apr 2014510
May 2014320
Jun 2014230
Jul 20140140
Aug 2014710
Sep 2014600
Nov 2014300
Dec 2014120
Jan 2015300
Feb 2015040
Mar 2015240
Apr 2015210
May 2015430
Jul 2015110
Aug 2015010
Sep 2015210
Oct 2015140
Dec 2015420
Jan 2016100
Feb 2016200
Mar 2016310
Apr 2016210
May 2016200
Jun 2016320
Jul 2016300
Aug 2016440
Sep 2016810
Oct 2016620
Nov 2016300
Dec 2016110
Jan 2017200
Feb 2017320
Mar 2017620
Apr 2017400
May 2017510
Jun 2017510
Jul 2017410
Aug 2017610
Sep 2017510
Oct 2017610
Nov 2017200
Dec 2017100
Jan 2018620
Feb 20181340
Mar 2018630
Apr 20181130
May 20181200
Jun 2018240
Jul 2018240
Aug 2018910
Sep 2018320
Oct 2018600
Nov 2018420
Dec 20181220
Jan 20191600
Feb 20191010
Mar 20193230
Apr 20191320
May 20191920
Jun 2019810
Jul 2019330
Aug 2019620
Sep 2019310
Oct 2019100
Nov 2019600
Dec 2019500
Jan 2020400
Feb 2020410
Mar 2020200
Apr 2020210
May 20205630
Jun 2020410
Jul 2020510
Aug 2020550
Sep 20202840
Oct 20202430
Nov 20203720
Dec 20201020
Jan 2021710
Feb 2021420
Mar 2021300
Apr 2021810
May 20211620
Jun 2021500
Total86519540