ReviewsBr Med J 1918; 1 doi: http://dx.doi.org/10.1136/bmj.1.2984.288 (Published 09 March 1918) Cite this as: Br Med J 1918;1:288
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