Task: Answer Verification
Input (English): Question: Do thymidylate synthase and p53 expression in primary tumor predict chemotherapy outcome in metastatic colorectal carcinoma?
Answer: Immunohistochemical investigation of TS and p53 of the primary tumour is not useful to predict the outcome of palliative chemotherapy in ACRC. Instead, TS can be regarded as a marker for prediction of time to recurrence.
Output (English): no