Articles Letters, Notes, and Answers Br Med J 1938; 1 doi: https://doi.org/10.1136/bmj.1.4032.880 (Published 16 April 1938) Cite this as: Br Med J 1938;1:880 Article Related content Metrics Responses Peer review Related articles Correction Corrigendum Published: 09 November 1935; Br Med J 2 doi:10.1136/bmj.2.3905.932 Correction Corrigenda Published: 09 May 1936; Br Med J 1 doi:10.1136/bmj.1.3931.975-a