Research Article

Pneumonia--pre-existing lung disease.

Br Med J 1971; 4 doi: http://dx.doi.org/10.1136/bmj.4.5778.42 (Published 02 October 1971) Cite this as: Br Med J 1971;4:42

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

PDF extract preview