Carotene Preparations as Substitutes for Vitamin A PreparationsBr Med J 1941; 2 doi: https://doi.org/10.1136/bmj.2.4211.406 (Published 20 September 1941) Cite this as: Br Med J 1941;2:406
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