Why Thirty per Cent

Br Med J 1970; 2 doi: http://dx.doi.org/10.1136/bmj.2.5710.616 (Published 13 June 1970)
Cite this as: Br Med J 1970;2:616

Download this article to citation manager

Help

If you are unable to import citations, please contact technical support for your product directly (links go to external sites):

THIS WEEK'S POLL