echocardiography: papillary muscles of left atrioventricular valve with multiple muscle groups
echocardiography: papillary muscles of left atrioventricular valve with multiple muscle groups
echocardiography: papillary muscles of left atrioventricular valve with multiple muscle groups (procedure)
echocardiography: papillary muscles of left atrioventricular valve with multiple muscle groups (procedure)