Task: Answer Verification
Input (English): Question: Are plasma fibrinogen and D-dimer concentrations associated with the presence of abdominal aortic aneurysm : a systematic review and meta-analysis?
Answer: We found that plasma fibrinogen and D-dimer concentrations are likely to be higher in cases with AAA than control subjects. Higher plasma fibrinogen and D-dimer concentrations may be associated with the presence of AAA.
Output (English): yes