title: [Contrast echocardiography in the diagnosis of the persistency of fetal circulation syndrome].
mesh_terms: D001164:Arteriovenous Fistula / Q000175:diagnosis; D004452:Echocardiography / Q000379:methods*; D004562:Electrocardiography; D006343:Heart Septal Defects / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis*
vernacular_title: Ecocardiografía de contraste en el diagnóstico del síndrome de persistencia de circulación fetal.