Letters, Notes, and AnswersBr Med J 1924; 1 doi: http://dx.doi.org/10.1136/bmj.1.3301.652 (Published 05 April 1924) Cite this as: Br Med J 1924;1:652
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