Articles SUPPLEMENT 2487 Br Med J 1952; 2 doi: https://doi.org/10.1136/bmj.2.4785.S133 (Published 20 September 1952) Cite this as: Br Med J 1952;2:S133 Article Related content Metrics Responses Peer review Related articles Correction Correction Published: 15 October 1960; Br Med J 2 doi:10.1136/bmj.2.5206.S168