ReviewsBr Med J 1922; 1 doi: https://doi.org/10.1136/bmj.1.3186.105 (Published 21 January 1922) Cite this as: Br Med J 1922;1:105
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