Invited commentary.
Leipzig Heart Center, Struempellstrasse 39, Leipzig 04289, Germany. Electronic address: michael.borger@med.uni-leipzig.de.
Michael A
MA
Borger
D001021:Aortic Valve / Q000000981:diagnostic imaging*; D019560:Echocardiography, Three-Dimensional; D006801:Humans; D008955:Models, Cardiovascular