title: [Contrast echocardiography in cyanotic heart malformations].
mesh_terms: D002648:Child; D002675:Child, Preschool; D003490:Cyanosis; D004452:Echocardiography; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn