São Paulo medical journal = Revista paulista de medicina
The most recent articles from:
Sao Paulo Med J
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Randomized Controlled Trial
Epidural versus intravenous fentanyl for postoperative analgesia following orthopedic surgery: randomized controlled trial.
Controversy exists regarding the site of action of fentanyl after epidural injection. The objective of this investigation was to compare the efficacy of epidural and intravenous fentanyl for orthopedic surgery. ⋯ NCT00635986.