Flowchart shows the development of collateral vessels with regard to the formation of ductus arteriosus. MAPCAS = Major Aortopulmonary Collateral Arteries, PA-VSD = Pulmonary Atresia with Ventricular Septal Defect, PDA = Patent Ductusarteriosus, TOF = Tetralogy of Fallot.
Description: No description available.
