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González-Suárez S, Pacheco M, Roigé J, Puig MM. Comparative Study of Ropivacaine 0.5% and Levobupivacaine 0.33% in Axillary Brachial Plexus Block. Regional Anesthesia and Pain Medicine. 2009 Sep;34(5):414–9. doi: 10.1097/aap.0b013e3181ae729b. |