Fig. 3From: Short-term results of interventional therapy for infants (7–36 months old) with patent ductus arteriosus and moderate-to-severe pulmonary hypertension: a retrospective studyTransthoracic echocardiography results before occlusion. The white arrow indicates the patent ductus arteriosus. PA, pulmonary artery; AO, aortaBack to article page
