Correspondence

Marking of Swabs

Br Med J 1963; 1 doi: https://doi.org/10.1136/bmj.1.5336.1023-c (Published 13 April 1963) Cite this as: Br Med J 1963;1:1023

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

Subscribe