General Articles And News
Medical News
Br Med J 1956; 2 doi: https://doi.org/10.1136/bmj.2.4993.665 (Published 15 September 1956) Cite this as: Br Med J 1956;2:665
Article usage
Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.