A Comparison of Epidural Ropivacaine Infusion Alone and with Three Different Concentrations of Fentanyl for 72 Hours of Postoperative Analgesia Following Major Abdominal Surgery.
A Comparison of Epidural Ropivacaine Infusion Alone and with Three Different Concentrations of Fentanyl for 72 Hours of Postoperative Analgesia Following Major Abdominal Surgery.
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