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Br Med J 1957; 2 doi: https://doi.org/10.1136/bmj.2.5056.1321 (Published 30 November 1957) Cite this as: Br Med J 1957;2:1321

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: June 2009 to May 2018

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AbstractFullPdf
Jun 2009001
Jul 2009001
Oct 2010002
Nov 2010002
Dec 2010002
Jan 2011001
May 2011001
Sep 2011001
Nov 2011001
Feb 2012001
Jan 2014001
Dec 2014001
Jan 2016002
May 2018001
Total0018