Intended for healthcare professionals

Articles

Personal View

British Medical Journal 1988; 297 doi: https://doi.org/10.1136/bmj.297.6652.869 (Published 01 October 1988) Cite this as: British Medical Journal 1988;297:869
PDF extract preview

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

Log in

Log in through your institution

Subscribe

* For online subscription