Articles British Medical Journal Br Med J 1927; 1 doi: https://doi.org/10.1136/bmj.1.3444.69 (Published 08 January 1927) Cite this as: Br Med J 1927;1:69 Article Related content Metrics Responses Peer review Related articles Correction Correction Published: 23 January 1937; Br Med J 1 doi:10.1136/bmj.1.3968.202-b