Cardiac Auscultation, Ventricular Septal Defect, Small (aortic)

Cardiac Auscultation, Ventricular Septal Defect (apex, aortic)

Cardiac Auscultation, Patent Ductus Arteriosus (left lower sternal border, aortic)

Cardiac Auscultation, Patent Ductus Arteriosus (aortic)