Sentence: In HCV genotype 1 infection and F3 or F4 liver fibrosis , treatment with boceprevir or telaprevir in addition to pegylated interferon and ribavirin is recommended .
Drug combination annotation:
[{'class': 'POS', 'spans': ['boceprevir', 'pegylated interferon', 'ribavirin'], 'is_context_needed': False}, {'class': 'POS', 'spans': [1, 2, 3], 'is_context_needed': False}]