Physics and Physical MedicineBr Med J 1936; 1 doi: http://dx.doi.org/10.1136/bmj.1.3938.1325-b (Published 27 June 1936) Cite this as: Br Med J 1936;1:1325
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