Correction for Poloniecki et al., BMJ 316 (7146) 1697-1700.
BMJ 1998;316:1947 ( 27 June )

Correction

Cumulative risk adjusted mortality chart for detecting changes in death rate: observational study of heart surgery

An editorial error occurred in this paper by J Poloniecki et al (6 June, pp 1697-700). The authors and contributors were Jan Poloniecki, Oswaldo Valencia, and Peter Littlejohns. Tom Treasure chose not to be an author and was not a contributor.

© BMJ 1998
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