Articles Reports of Societies Br Med J 1928; 1 doi: https://doi.org/10.1136/bmj.1.3514.803 (Published 12 May 1928) Cite this as: Br Med J 1928;1:803 Article Related content Metrics Responses Peer review Related articles Correction Correction Published: 14 April 1956; Br Med J 1 doi:10.1136/bmj.1.4971.874