title: [Two-dimensional echocardiographic diagnosis of the patent ductus arteriosus and its significance in open heart surgery].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis* / Q000601:surgery; D004452:Echocardiography / Q000379:methods; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male