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Comparison of alanine aminotransferase. Alanine aminotransferase (ALT) levels were compared between the high (≥300 mm2) and low (<300 mm2) periodontal inflamed surface area (PISA) groups. (A) Comparison of the males and (B) females. The box plots show the medians, 25th, and 75th percentiles as boxes and the 10th and 90th percentiles as whiskers. The Wilcoxon signed-rank test was used.
