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Comparison between numerical pain scores according to the type of surgery at postoperative assessment intervals. The box plot displays 10th, 25th, median (fat bars), 75th, and 90th percentiles of values. PACU: post-anesthesia care unit. *P < 0.05 using the Friedman test with post-hoc testing using the Wilcoxon rank-sum test with Bonferroni correction.
