Objective:To study the therapeutic efficacy and safety of the Fentanyl transdermal patch on the aged patients with moderate or severe cancer pain and swallowing difficulty.
目的：探讨老年癌痛患者使用芬太尼透皮贴剂的效果和安全性。
Objective:To study the therapeutic efficacy and safety of the Fentanyl transdermal patch on the aged patients with moderate or severe cancer pain and swallowing difficulty.
目的：探讨老年癌痛患者使用芬太尼透皮贴剂的效果和安全性。
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