Correction
Corrigendum
Br Med J 1937; 2 doi: https://doi.org/10.1136/bmj.2.4013.1152 (Published 04 December 1937) Cite this as: Br Med J 1937;2:1152
This article has a correction. Please see:
This is a PDF-only article. The first page of the PDF of this article appears above.