Corrections
Developments have been made on cardiac surgical audit in Bristol
BMJ 1999; 319 doi: https://doi.org/10.1136/bmj.319.7204.253a (Published 24 July 1999) Cite this as: BMJ 1999;319:253
In this letter by B E Keogh and colleagues (26 June, p 1760) the website address for finding the risk stratified data (given near the beginning of the fifth paragraph) was wrong. The correct address is www.ubht.org.uk.