Errata
Erratum
Br Med J 1903; 2 doi: https://doi.org/10.1136/bmj.2.2241.1572 (Published 12 December 1903) Cite this as: Br Med J 1903;2:1572
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.