A.M.ABr Med J 1962; 2 doi: https://doi.org/10.1136/bmj.2.5301.412-b (Published 11 August 1962) Cite this as: Br Med J 1962;2:412
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