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Average percent facial motoneuron survival after delayed local anesthetic treatment. Bar graph demonstrating average percentage of facial motoneuron survival at 4 weeks after facial nerve injury and delayed treatment with saline, lidocaine, bupivacaine, and liposomal bupivacaine. A - Sham injury, B - Transection injury, C - Crush injury. # denotes statistical difference compared to bupivacaine (P < 0.05).
