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: Is physician preference a major factor in management of vesicoureteral reflux?
Answer: A surgeon's historic Deflux utilization was the most important predictor of VUR surgery type. Although data on reflux grade were not available, analysis of patient and surgeon characteristics suggests that surgeon preference is the first or second most critical factor in determining a patient's treatment.
A:
yes