Leading Articles
Review Body's Report
Br Med J 1970; 2 doi: https://doi.org/10.1136/bmj.2.5708.495 (Published 30 May 1970) Cite this as: Br Med J 1970;2:495
This is a PDF-only article. The first page of the PDF of this article appears above.
Log in
Log in using your username and password
Log in through your institution
Subscribe from £173 *
Subscribe and get access to all BMJ articles, and much more.
* For online subscription
Access this article for 1 day for:
£38 / $45 / €42 (excludes VAT)
You can download a PDF version for your personal record.