Words and ConceptsBr Med J 1966; 1 doi: https://doi.org/10.1136/bmj.1.5485.473-a (Published 19 February 1966) Cite this as: Br Med J 1966;1:473
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