D. Campbell Black, M.DBr Med J 1898; 2 doi: https://doi.org/10.1136/bmj.2.1983.1942 (Published 31 December 1898) Cite this as: Br Med J 1898;2:1942
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial