An iontophoretic fentanyl patient-activated analgesic delivery system for postoperative pain: a double-blind, placebo-controlled trial.

Viscusi ER, Reynolds L, Tait S, Melson T, Atkinson LE. An iontophoretic fentanyl patient-activated analgesic delivery system for postoperative pain: a double-blind, placebo-controlled trial. Anesth Analg. 2006 Jan; 102(1):188-94.

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