英文: The effect of epidural sufentanil in ropivacaine on urinary retention in patients undergoing gastrectomy.
中文: 胃切除术患者用含有苏芬太尼的罗哌卡因行术后镇痛,(观察其)对尿潴留的影响。英文: Dr. Hung asked the speaker why bolus injections of sufentanil had been used rather than an infusion.
中文: 洪医生问报告人为什么用多次单剂量苏芬太尼注射而不用滴注?