Miguel A Quiñones, Pamela S Douglas, Elyse Foster, John Gorcsan, Jannet F Lewis, Alan S Pearlman, Jack Rychik, Ernesto E Salcedo, James B Seward, J.Geoffrey Stevenson, Daniel M Thys, Howard H Weitz, William A Zoghbi, Mark A Creager, William L Winters, Michael Elnicki, John W Hirshfeld, Beverly H Lorell, George P Rodgers, Cynthia M Tracy, Howard H Weitz,
ACC/AHA clinical competence statement on echocardiography: a report of the American College of Cardiology/American Heart Association/American College of Physicians-American Society of Internal Medicine Task Force on Clinical Competence. Journal of the American College of Cardiology. ,vol. 41, pp. 687- 708 ,(2003) ,
10.1016/S0735-1097(02)02885-1