Effects of Different Doses of Butorphanol on Perioperative Analgesia,

Effects of Different Doses of Butorphanol on Perioperative Analgesia,

Introduction

Ovarian cancer is the third most common gynecological malignancy globally, with a five-year survival rate of 40–45%.1–3 Cytoreductive surgery serves as the first-line treatment for ovarian cancer and requires multi-organ…

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