Maver, A., et al. “Peroxisome Proliferator-Activated Receptor G Pro12Ala Polymorphism and Peroxisome Proliferator-Activated Receptor G Coactivator-1 Alpha Gly482Ser Polymorphism in Patients With Sarcoidosis”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 25, no. 1, June 2008, pp. 29-35, https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2641.