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.
--------
Question: Question: Does fK778 attenuate cytomegalovirus-enhanced vein graft intimal hyperplasia in a rat model?
Answer: These data suggest a role of CMV in venous graft failure. Also, our results suggest a prospective role for the new immunosuppressive drug FK778 in the prevention of (CMV-mediated) vein graft intimal hyperplasia.

Answer: yes


Question: Question: Is prenatal anteroposterior pelvic diameter cutoffs for postnatal referral for isolated pyelectasis and hydronephrosis : more always better?
Answer: Using these thresholds, we could avoid a significant number of followup ultrasounds in the prenatal and postnatal periods, as well as invasive postnatal tests (ie voiding cystourethrography and mercaptoacetyltriglycine scintigraphy) without missing even a single case of obstructive nephropathy requiring surgery.

Answer: no


Question: Question: Are routine pouchograms necessary after continent urinary diversion?
Answer: Our findings indicate that routine pouchograms before pouch activation after continent urinary diversion may not be necessary.

Answer:
no