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.

[EX Q]: Question: Is previous laparotomy a contraindication to laparoscopy-assisted gastrectomy for early gastric cancer?
Answer: There was no difference in outcome following LAG between the PSURG and NSURG groups in the present study. The PSURG patient is not contraindicated for LAG assuming careful attention is given for all operative procedures, including port insertion and dissection of intra-abdominal adhesions.
[EX A]: no

[EX Q]: Question: Does pimecrolimus affect Langerhans cells in murine epidermis?
Answer: It is therefore unlikely that topically applied pimecrolimus affects epidermal LCs, in contrast to corticosteroids.
[EX A]: no

[EX Q]: Question: Does intra-aortic counterpulsation improve coronary flow early after PCI in a high-risk group of patients : observations from a randomized trial to explore its mode of action?
Answer: Whether an IABP is of any benefit in non-shocked, but high-risk, patients undergoing PCI remains to be established, but any potential benefit does not appear to be associated with early improvement in coronary flow. Whether the insertion of an IABP improves coronary flow beyond 10 minutes is not known. However, the IABP did not significantly affect subsequent left ventricular wall motion index or ECG ST-segment resolution in this study.
[EX A]:
no