title: Echocardiographic assessment of ventricular wall motion in patients with poor acoustic windows: the uneasy transition from art to science.
authors.forename: R M
authors.initials: RM
authors.lastname: Lang
authors.forename: V
authors.initials: V
authors.lastname: Mor-Avi
mesh_terms: D015150:Echocardiography, Doppler / Q000379:methods / Q000592:standards*; D006801:Humans; D009200:Myocardial Contraction; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*