A new method of auditing surgical mortality rates: application to a group of elderly general surgical patientsBr Med J (Clin Res Ed) 1982; 284 doi: http://dx.doi.org/10.1136/bmj.284.6333.1952 (Published 26 June 1982) Cite this as: Br Med J (Clin Res Ed) 1982;284:1952
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