(BQ) Continued part 1, part 2 of the document Echocardiography of Feigenbaum (Eighth edition) has contents: Masses, tumors, and source of embolus, diseases of the aorta, congenital heart diseases, hypertrophic and other cardiomyopathies, dilated cardiomyopathies, stress echocardiography, and other contents. Invite you to refer.