Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Question: Does interferon responsiveness change in treatment-experienced hepatitis C subjects : implications for drug development and clinical decisions?
Answer: We contend that P/R-experienced subjects are represented within treatment-naive subjects. There are 2 important implications of this finding: (1) from a drug development perspective, a successful direct antiviral plus P/R therapy (IFN-based triple therapy) trial in P/R-experienced subjects may serve as supportive evidence in treatment-naive subjects; and (2) from a clinical decision perspective, previous P/R exposure should not alter new treatment decisions involving IFN-based triple therapy, as the IFN responsiveness to a second course of IFN is comparable.
no

Question: Does greater body mass independently predict less radiographic progression on X-ray and MRI over 1-2 years?
Answer: Greater BMI is associated with a lower risk of progression on X-ray and MRI over 2 years. Subjects with greater BMI also demonstrate less bone oedema at baseline. Greater BMI may indicate a less aggressive RA phenotype and aid in risk stratification.
yes

Question: Do young adult injection drug users in the United States continue to practice HIV risk behaviors?
Answer: More than two decades after injection and sexual practices were identified as risk factors for HIV infection, these behaviors remain common among young IDUs. While racial/ethnic disparities persist, methamphetamine may be replacing cocaine as the drug most associated with HIV seropositivity. HIV prevention interventions targeting young IDUs and address both sexual and injection practices are needed.

yes