Fig. 6From: Anterior Quadratus Lumborum block area comparison in the three different volumes of Ropivacaine: a double-blind, randomized controlled trial in healthy volunteersSurvival table for the block duration. No significant difference was observed among the 20-, 30-, and 40-ml groups (median time, 21 vs. 24 vs. 24 h, P = 0.712)Back to article page