Correspondence

Points from letters: Incidence of pertussis

Br Med J 1975; 4 doi: https://doi.org/10.1136/bmj.4.5988.106-f (Published 11 October 1975) Cite this as: Br Med J 1975;4:106

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Usage statistics: April 2011 to June 2016

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Apr 2011001
Jun 2011007
Sep 2011001
Dec 2011002
May 2012005
Mar 2014001
Jul 2014003
Dec 2015002
Jun 2016001
Total0023