Oral Poliomyelitis VaccineBr Med J 1961; 2 doi: https://doi.org/10.1136/bmj.2.5261.1226 (Published 04 November 1961) Cite this as: Br Med J 1961;2:1226
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