Research Article

Immunization and other prophylactic measures.

Br Med J 1974; 4 doi: https://doi.org/10.1136/bmj.4.5945.648 (Published 14 December 1974) Cite this as: Br Med J 1974;4:648

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview