General Articles And News
Medical NewsBr Med J 1959; 2 doi: http://dx.doi.org/10.1136/bmj.2.5161.1269 (Published 05 December 1959) Cite this as: Br Med J 1959;2:1269
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