John RossBr Med J 1871; 1 doi: https://doi.org/10.1136/bmj.1.542.547-a (Published 20 May 1871) Cite this as: Br Med J 1871;1:547
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