Mölleken, Christian, et al. “MFAP4: A Candidate Biomarker for Hepatic and Pulmonary Fibrosis?”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 33, no. 1, Mar. 2016, pp. 41-50, https://mattioli1885journals.com/index.php/sarcoidosis/article/view/4313.