Letters, Notes, and AnswersBr Med J 1927; 1 doi: https://doi.org/10.1136/bmj.1.3449.312 (Published 12 February 1927) Cite this as: Br Med J 1927;1:312
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