Detailed Instructions: 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.
Q: Question: Do thiopurine methyl-transferase activity and azathioprine metabolite concentrations predict clinical outcome in thiopurine-treated inflammatory bowel disease patients?
Answer: Our results do not support determination of TPMT activity or 6TGN concentrations to predict treatment outcome, and no useful serum metabolites threshold value to adjust the drug's dose was identified.
A:
no