Correspondence
Points: Data corruption
Br Med J (Clin Res Ed) 1986; 292 doi: https://doi.org/10.1136/bmj.292.6521.699-f (Published 08 March 1986) Cite this as: Br Med J (Clin Res Ed) 1986;292:699
This is a PDF-only article. The first page of the PDF of this article appears above.