PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30848363-9 2019 CONCLUSIONS: Many patients treated with the DCV/ASV/BCV regimen have a history of a failure to achieve SVR with previous IFN-free DAA therapy. daclatasvir 44-47 interferon alpha 1 Homo sapiens 121-124 30848363-11 2019 In addition, most patients with a history of failure with IFN-free DAA therapy, particularly the DCV/ASV regimen, showed resistance to this regimen. daclatasvir 97-100 interferon alpha 1 Homo sapiens 58-61