High cure rates for HCV genotype 6 in advanced liver fibrosis with 12 weeks sofosbuvir and daclatasvir: the Vietnam SEARCH study - Flower, B; McCabe, L; Le, Ngoc C; Le, Manh H; Le, Thanh P; Dang, Trong T; Vo, Thi T; Vu, Thi Kim H; Nguyen, Tat T; Phan, Thi Hong D; Nguyen, Thi Chau A; Dinh, Thi T; et al. (Open Forum Infectious Diseases, 2021)