Judson, M.A., et al. “Ambrisentan for Sarcoidosis Associated Pulmonary Hypertension”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 28, no. 2, Dec. 2011, pp. 139-45, https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2544.