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Br Med J (Clin Res Ed) 1982; 284 doi: (Published 22 May 1982) Cite this as: Br Med J (Clin Res Ed) 1982;284:1559

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: October 2010 to March 2018

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Oct 20100011
Dec 2010002
Jul 2011001
Nov 2011002
Feb 2012001
Jan 2013004
Jul 2013001
Oct 2013001
Jan 2014001
Jul 2014003
Dec 2015002
Mar 2018001