Intended for healthcare professionals


Position of the Apex Beat

Br Med J 1950; 1 doi: (Published 11 February 1950) Cite this as: Br Med J 1950;1:349

This article has a correction. Please see:

PDF extract preview

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

Log in

Log in through your institution


* For online subscription