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: Do gNAS gene variants affect -blocker-related survival after coronary artery bypass grafting?
Answer: GNAS haplotypes independently associate with an increased risk of death after primary coronary artery bypass graft surgery. These results are most pronounced in patients receiving AR blockers, strengthening the rationale for personalized treatment, to decrease medication side effects and improve outcomes.
[A]: yes

[Q]: Question: Do a Profilometric Study to Assess the Role of Toothbrush and Toothpaste in Abrasion Process?
Answer: Besides supporting the fact that toothpaste is needed to create a significant abrasion, this study also showed that a softer toothbrush can cause more abrasion than harder ones. The flexibility of bristles is only secondary to abrasion process and abrasivity of dentifrice has an important role in abrasion process.
[A]: yes

[Q]: Question: Are hypertension and hepatitis C virus infection strong risk factors for developing late renal dysfunction after living donor liver transplantation : significance of renal biopsy?
Answer: Although HCV and hypertension were determined to be independent risk factors for LRD after LDLT, a renal biopsy should be performed when clinical symptoms develop regardless of creatinine levels to provide appropriate treatment.
[A]:
yes