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: Are intrafollicular interleukin-8 , interleukin-12 , and adrenomedullin the promising prognostic markers of oocyte and embryo quality in women with endometriosis?
Answer: The levels of IL-8, IL-12, and adrenomedullin may be good indicators of embryo and oocyte quality in endometriosis patients undergoing IVF. Further studies are necessary to ascertain the potential of these markers for oocyte and embryo developmental competence which may help improve the chances of a successful IVF in endometriosis patients.

A: yes
****
Q: Question: Is cytoglobin upregulated by tumour hypoxia and silenced by promoter hypermethylation in head and neck cancer?
Answer: We conclude that the CYGB gene is regulated by both promoter methylation and tumour hypoxia in HNSCC and that increased expression of this gene correlates with clincopathological measures of a tumour's biological aggression.

A: yes
****
Q: Question: Is subcutaneous injection of liquid and foamed polidocanol : extravasation responsible for skin necrosis during reticular and spider vein sclerotherapy?
Answer: This experimental study shows that extravasation of polidocal in usual circumstances of sclerotherapy of spider and reticular veins cannot be a significant cause of cutaneous necrosis rarely observed in this setting. It is particularly true for the foamed polidocanol where 1% strength seems safe if injected extravascularly in volumes up to 0.5 mL.

A:
no
****