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Br Med J 1971; 2 doi: https://doi.org/10.1136/bmj.2.5753.7 (Published 10 April 1971) Cite this as: Br Med J 1971;2:7

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 2010 to May 2018

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AbstractFullPdf
Jul 2010001
Aug 2010001
Apr 2011001
Jun 2011009
Nov 2011002
Dec 2011001
May 2012004
Aug 2012001
Jul 2014002
Dec 2015002
May 2018001
Total0025