The “Boundary Line”Br Med J 1891; 2 doi: http://dx.doi.org/10.1136/bmj.2.1592.43 (Published 04 July 1891) Cite this as: Br Med J 1891;2:43
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