Task: Answer Verification
Input (English): Question: Do total serum homocysteine levels identify cognitive dysfunction in multimorbid elderly patients?
Answer: Elevated serum Hcys levels with normal plasma folate and vitamin B12 concentrations were observed in multimorbid elderly patients. The plasma Hcys level did not appear to be an important biological risk factor for cognitive dysfunction in multimorbid geriatric patients.
Output (English): no