High cure rates for HCV genotype 6 in advanced liver fibrosis with 12 weeks sofosbuvir and daclatasvir: The Vietnam SEARCH Study by Flower, B, McCabe, L, Ngoc, CL, Hung, LM, Phuong, LT, Trong, TD, Thi, TV, Kim, HVT, Tat, TN, Hong, DPT, Chau, ANT, Thi, TD, Tuyet, NTT, Tarning, J, Kingsley, C, Kestelyn, E, Pett, SL, Thwaites, G, Chau, NVV, Smith, D, Barnes, E, Ansair, A, Turner, H, Rahman, M, Walker, AS, Day, J, Cooke, GS