Direct-acting antiviralsillani, R., I. Donatiello, F. Barone, F. Cavallone, G. Fioravanti, F. Di Cosimo, F. Bellanti, F. Sollitto, G. Vendemiale, and G. Serviddio. “Efficacy and Safety of Direct-Acting Antivirals in Elderly With Chronic Hepatitis C: Results from a Retrospective Cohort Study”. JOURNAL OF GERONTOLOGY AND GERIATRICS, Vol. 66, no. 2, June 2018, pp. 46-55, http://www.jgerontology-geriatrics.com/article/view/90.