Development of CancerBr Med J 1972; 1 doi: http://dx.doi.org/10.1136/bmj.1.5795.318-a (Published 29 January 1972) Cite this as: Br Med J 1972;1:318
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