Darwin's HealthBr Med J 1965; 1 doi: https://doi.org/10.1136/bmj.1.5442.1129-d (Published 24 April 1965) Cite this as: Br Med J 1965;1:1129
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