Cor Triatriatum Dexter: Contrast Echocardiography Is Key to the Diagnosis of a Rare but Treatable Cause of Neonatal Persistent Cyanosis oleh Irene Picciolli, Gaia Francescato, Anna Maria Colli, Alessia Cappelleri, Alessandra Mayer, Roberto Raschetti, Roberta Di Cosola, Marco Pisaniello, Giuseppe Alberto Annoni, Marco Papa, Mimoza Maldi, Guido Olivieri, Fabio Mosca, Stefano Marianeschi