instruction:
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 transdermal oxygen improve sternal wound oxygenation in patients recovering from cardiac surgery?
Answer: Additional inspired oxygen improved Pao(2) and sternal wound PsqO(2) after bypass and may, consequently, reduce infection risk. However, oxygen insufflated locally into an occlusive dressing did not improve wound PsqO(2) and, therefore, does not appear to be useful clinically in cardiac surgery patients to reduce sternal wound infections.
answer:
no


question:
Question: Does switching types of drug-eluting stents prevent repeated in-stent restenosis in patients with coronary drug-eluting stent restenosis?
Answer: A strategy involving repeated DES implantation was superior to POBA for preventing recurrent restenosis. Treatment with a different type or generation of DES does not appear to reduce the incidence of TLR. Moreover, we identified certain useful factors for facilitating appropriate and early triage in the patients with repeated DES ISR.
answer:
no


question:
Question: Is race an independent predictor of biochemical recurrence after radical prostatectomy in an equal access medical center?
Answer: In an equal access medical care facility, no differences were evident between black and white men in the preoperative clinical factors or the pathologic features of the RP specimens. In addition, no differences were observed in the PSA recurrence rates after RP. Serum PSA, biopsy Gleason score, younger age, surgical Gleason score, and lymph node involvement were all independent predictors of biochemical recurrence. Race was not an independent predictor of biochemical recurrence.
answer:

no