title: A comparison of epidural infusion of 0.2, 0.25, and 0.3% ropivacaine with fentanyl after unilateral total knee arthroplasty.
authors.affiliation: Department of Anesthesiology and Pain Medicine, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea.
authors.forename: Jae Ho
authors.initials: JH
authors.lastname: Lee
authors.forename: Nam Oh
authors.initials: NO
authors.lastname: Kim
authors.forename: Eun Kyoung
authors.initials: EK
authors.lastname: Ahn
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