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.

[EX Q]: Question: Is premature immunosenescence associated with memory dysfunction in rheumatoid arthritis?
Answer: RA patients had reduced memory performance compared to healthy controls. Expansion of activated and senescence-associated T cells was correlated with poor memory performance.
[EX A]: yes

[EX Q]: Question: Does novel Manganese-Porphyrin Superoxide Dismutase-Mimetic widen the Therapeutic Margin in a Preclinical Head and Neck Cancer Model?
Answer: MnBuOE widens the therapeutic margin by decreasing the dose of radiation required to control tumor, while increasing normal tissue resistance to RT-mediated injury. This is the first study to quantitatively demonstrate the magnitude of a single drug's ability to radioprotect normal tissue while radiosensitizing tumor.
[EX A]: yes

[EX Q]: Question: Is younger age associated with lower reactive hyperemic index but not lower flow-mediated dilation among children and adolescents?
Answer: Younger age is associated with lower RHI but not lower FMD among children and adolescents. These findings call into question the validity and usefulness of digital reactive hyperemia as a method to quantify endothelial function among younger children.
[EX A]:
yes