Fig. 5From: Anterior Quadratus Lumborum block area comparison in the three different volumes of Ropivacaine: a double-blind, randomized controlled trial in healthy volunteersThe number of blocked dermatomes in the 20, 30, and 40 ml groups. There are significant differences in the number of blocked dermatomes among the 20-, 30-, and 40-mL groups. Data is expressed as median (quartile); **p < 0.01, ***p < 0.001Back to article page