Quality of life in HCV patients treated with OBV/PTV/r ± DSV ± RBV under real-life conditions – Data from the German observational study LIFE-C - Buggisch, P; Link, R; Naumann, U; Teuber, G; Heyne, R; Hülsenbeck, J; Lohmann, K; Kraus, M (Zeitschrift für Gastroenterologie, 2018)