title: Authors' Reply.
authors.affiliation: The University of Chicago Medical Center, Chicago, Illinois.
authors.forename: Victor
authors.initials: V
authors.lastname: Mor-Avi
authors.affiliation: The University of Chicago Medical Center, Chicago, Illinois.
authors.forename: Roberto M
authors.initials: RM
authors.lastname: Lang
authors.affiliation: Washington Hospital Center, Washington, District of Columbia.
authors.forename: Steven A
authors.initials: SA
authors.lastname: Goldstein
mesh_terms: D004452:Echocardiography / Q000592:standards*; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D017410:Practice Guidelines as Topic; D013318:Stroke Volume; D018754:Ventricular Dysfunction / Q000000981:diagnostic imaging*