Accuracy of data based on hospital discharge diagnoses.Br Med J 1978; 1 doi: https://doi.org/10.1136/bmj.1.6118.990 (Published 15 April 1978) Cite this as: Br Med J 1978;1:990
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial