J Am Coll Cardiol. 2006 Feb 7;47(3):500-6. doi: 10.1016/j.jacc.2005.09.032. Epub 2006 Jan 18.
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Recommendations for chamber quantification: a report from the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group, developed in conjunction with the European Association of Echocardiography, a branch of the European Society of Cardiology.