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 vitamin D deficiency independently associated with greater prevalence of erectile dysfunction : The National Health and Nutrition Examination Survey ( NHANES ) 2001-2004?
Answer: In this cross-sectional analysis of a representative sample of U.S. men, vitamin D deficiency was associated with an increased prevalence of ED independent of ASCVD risk factors. Additional research is needed to evaluate whether treating vitamin D deficiency improves erectile function.
[A]: yes


[Q]: Question: Do rates of labor induction and primary cesarean delivery correlate with rates of adverse neonatal outcome in level I hospitals?
Answer: Crude and adjusted rates of labor induction and PCD vary among level I hospitals, but with no consistent effect on neonatal outcome.
[A]: no


[Q]: Question: Is better survival in women with resected hepatocellular carcinoma related to tumor proliferation or expression of hormone receptors?
Answer: Women with HCC had significantly better survival and lower tumor recurrence rates. However, significant differences in cellular proliferation indices and expression of ER and PR were not observed between men and women to explain the difference in survival rate.
[A]:
no