Preparations and AppliancesBr Med J 1957; 2 doi: http://dx.doi.org/10.1136/bmj.2.5055.1237 (Published 23 November 1957) Cite this as: Br Med J 1957;2:1237
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