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BMJ 2011; 342 doi: https://doi.org/10.1136/bmj.d1001 (Published 15 February 2011) Cite this as: BMJ 2011;342:d1001

Cardiac imaging after heart attacks increases cancer risk: A Canadian cohort study of 82 861 patients has found that exposure to low-dose ionising radiation from cardiac imaging and therapeutic procedures after acute myocardial infarction is associated with an increased risk of cancer (CMAJ 2011, doi: 10.1503/cmaj.100463). Even moderate levels of exposure were associated with an increased risk of cancer.

Research unit to investigate value of competition in the NHS: The independent research unit the Office of Health Economics …

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