title: [Estimation of collateral blood flow in patients with severe congenital cyanotic heart disease and its clinical significance].
mesh_terms: D001811:Blood Volume Determination; D002648:Child; D002675:Child, Preschool; D003097:Collateral Circulation; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications*; D006801:Humans; D008297:Male; D011652:Pulmonary Circulation; D011666:Pulmonary Valve Stenosis / Q000150:complications*