Errors in performance and interpretation of echocardiograms.
D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D003951:Diagnostic Errors; D004452:Echocardiography; D006325:Heart Atria; D006331:Heart Diseases / Q000175:diagnosis*; D006338:Heart Neoplasms / Q000175:diagnosis; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis; D006801:Humans; D008943:Mitral Valve; D008944:Mitral Valve Insufficiency / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D009232:Myxoma / Q000175:diagnosis; D010490:Pericardial Effusion / Q000175:diagnosis