Intended for healthcare professionals

Research Article

All change for research.

Br Med J (Clin Res Ed) 1987; 295 doi: https://doi.org/10.1136/bmj.295.6607.1177 (Published 07 November 1987) Cite this as: Br Med J (Clin Res Ed) 1987;295:1177

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: March 2010 to July 2021

Rendering graph...
AbstractFullPdf
Mar 2010003
Apr 2010001
Oct 2010001
Dec 2010003
Mar 2011001
May 2011001
Jul 2011001
Sep 2011001
Dec 2011001
Jan 2012003
Feb 2012001
May 2012003
Jun 2012001
Sep 2012003
Dec 2012001
Jan 2013002
Feb 2013003
May 2013002
Jun 20130012
Jul 2013001
Sep 2013001
Nov 2013009
Dec 2013004
Mar 2014001
May 2014001
Jun 2014002
Jul 2014006
Aug 2014001
Jan 2015003
Mar 2015009
Sep 2015002
Oct 2015001
Jan 2016002
Mar 2016002
Jun 2016002
Jul 2016001
Sep 20160013
Dec 2016004
Feb 2017002
Apr 2017001
May 2017003
Sep 2017001
May 2018002
Oct 2018002
Dec 2018001
Mar 2019004
Apr 2019001
May 2019003
Jun 2019001
Jul 2019003
Aug 2019004
Sep 2019001
Oct 2019001
Nov 2019002
Dec 2019002
Jan 2020005
Feb 2020002
Mar 2020002
Apr 2020001
May 2020002
Jun 2020001
Jul 2020003
Sep 2020001
Oct 2020003
Nov 2020001
Dec 2020001
Jan 2021004
Feb 2021003
Mar 2021003
Apr 2021004
May 2021001
Jun 2021002
Jul 2021004
Total00186