Iglehart JK. Health insurers and medical-imaging policy-a work in progress. N Engl J Med 2009;360: 1030-7.
Jacobs AK, Kushner FG, Ettinger SM, Guyton RA, Anderson JL, Ohman EM et al. ACCF/AHA Clinical Practice Guideline Methodology Summit Report: A Report of the American College of Cardiology Foundation/ American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2013;61:213-65.