Bossone, E., Citro, R., Ruggiero, A., Kuersten, B., Gregorio, G., Blasi, F. and Allegra, L. (2016) “Echocardiography and Pulmonary Arterial Hypertension”, Monaldi Archives for Chest Disease, 68(4). doi: 10.4081/monaldi.2007.440.