Fig. 2From: Effect of local anesthetic concentration, dose and volume on the duration of single-injection ultrasound-guided axillary brachial plexus block with mepivacaine: a randomized controlled trialDuration of overall sensory block (a) and overall motor block (b) per Group. Group A: 20 mL mepivacaine 1.5 %. Group B: 30 mL mepivacaine 1.0 %. Group C: 30 mL mepivacaine1.5 %. Dots represent individual patients, the horizontal lines with error bars represent mean with SD. *p < 0.05Back to article page