Research Article

How soon is now? Public health and the BMJ.

BMJ 1990; 301 doi: http://dx.doi.org/10.1136/bmj.301.6754.738 (Published 03 October 1990) Cite this as: BMJ 1990;301:738

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

PDF extract preview