Research Article

Change in use of asthma as a diagnostic label for wheezing illness in schoolchildren.

BMJ 1989; 299 doi: http://dx.doi.org/10.1136/bmj.299.6704.898 (Published 07 October 1989) Cite this as: BMJ 1989;299:898

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

PDF extract preview