Redefining marginal costs and benefitsBMJ 1996; 312 doi: https://doi.org/10.1136/bmj.312.7029.509a (Published 24 February 1996) Cite this as: BMJ 1996;312:509
- M Jenning
- Senior lecturer Department of Health Care for Elderly People, University of Sheffield, Northern General Hospital, Sheffield S5 7AU
EDITOR,—The results of the study by Nicholas Wald and colleagues1 indicate that two view mammography is more effective in detecting breast cancers than a single view technique, but as it is more expensive there …
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