White, Green, and other PapersBr Med J 1971; 2 doi: https://doi.org/10.1136/bmj.2.5760.532-c (Published 29 May 1971) Cite this as: Br Med J 1971;2:532
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