Correspondence

Release of High-frequency Apparatus

Br Med J 1942; 2 doi: http://dx.doi.org/10.1136/bmj.2.4269.527 (Published 31 October 1942) Cite this as: Br Med J 1942;2:527

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview

Sign in

Log in through your institution

Free trial

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

Subscribe