England and WalesBr Med J 1935; 1 doi: https://doi.org/10.1136/bmj.1.3880.1045 (Published 18 May 1935) Cite this as: Br Med J 1935;1:1045
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial