术后恶心呕吐的发病机制不明，药物治疗效果欠佳，非药物治疗如针灸治疗有一定的疗效，但其作用机制尚不明确。
The mechanism of postoperative nausea and vomiting(PONV)is not clear. Pharmacotherapy is not good enough for PONV, and acupuncture has some effect on PONV though mechanism was not clear also.
术后恶心呕吐的发病机制不明，药物治疗效果欠佳，非药物治疗如针灸治疗有一定的疗效，但其作用机制尚不明确。
The mechanism of postoperative nausea and vomiting(PONV)is not clear. Pharmacotherapy is not good enough for PONV, and acupuncture has some effect on PONV though mechanism was not clear also.
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