James Lindsay H. H. Porteous, M.DBr Med J 1920; 2 doi: https://doi.org/10.1136/bmj.2.3105.30-a (Published 03 July 1920) Cite this as: Br Med J 1920;2:30
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