ACC/AHA guidelines for the clinical application of echocardiography: executive summary. A report of the American College of Cardiology/American Heart Association Task Force on practice guidelines (Committee on Clinical Application of Echocardiography). Developed in collaboration with the American Society of Echocardiography
J Am Coll Cardiol. 1997 Mar 15;29(4):862-79.
doi: 10.1016/s0735-1097(96)90000-5.