Morrison, L M Efficacy and kinetics of extradural ropivacaine: comparison with bupivacaine. [electronic resource] - British journal of anaesthesia Feb 1994 - 164-9 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0007-0912 Standard No.: 10.1093/bja/72.2.164 doi Subjects--Topical Terms: AdultAgedAmides--pharmacokineticsAnesthesia, EpiduralAnesthetics, Local--pharmacokineticsBupivacaine--pharmacokineticsFemaleHumansMaleMiddle AgedMotor Neurons--drug effectsNeurons, Afferent--drug effectsRopivacaineTime Factors