Chen J, Einstein A, Fazel R, Krumholz H, Wang Y, Ross J, et al. Cumulative exposure to ionizing radiation from diagnostic and therapeutic cardiac imaging procedures: a population-based analysis. J Am Coll Cardiol. 2010;56:702-11 pubmed publisher
..Annual effective doses increased with age and were generally higher among men. Cardiac imaging procedures lead to substantial radiation exposure and effective doses for many patients in the U.S. ..
Chen J, Ross J, Carlson M, Lin Z, Normand S, Bernheim S, et al. Skilled nursing facility referral and hospital readmission rates after heart failure or myocardial infarction. Am J Med. 2012;125:100.e1-9 pubmed publisher
..SNF rates after HF or AMI hospitalization vary considerably across hospitals, but explain little of the variation in 30-day all-cause readmission rates for these conditions. ..