Sarker, Rampada, et al. “Role of Endothelin-1 Receptor Antagonist in Reducing Perioperative Pulmonary Arterial Hypertension After Surgical Correction of Ventricular Septal Defect”. Cardiovascular Journal, vol. 9, no. 1, Sept. 2016, pp. 55-59, doi:10.3329/cardio.v9i1.29544.