Increasing obstruction to the outflow tract in Fallot's tetralogy.
D000293:Adolescent; D000375:Aging; D000790:Angiocardiography; D002648:Child; D002675:Child, Preschool; D002932:Cineangiography; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D011651:Pulmonary Artery; D013771:Tetralogy of Fallot / Q000503:physiopathology*