Articles

Letters, Notes, and Answers

Br Med J 1931; 1 doi: http://dx.doi.org/10.1136/bmj.1.3677.1145 (Published 27 June 1931) Cite this as: Br Med J 1931;1:1145

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

PDF extract preview