Fig. 3
From: Changes in the gut bacterial communities in colon cancer surgery patients: an observational study
Bray Curtis similarity between preoperative (rectal) and postoperative (stoma or rectal) samples in patients who received cefuroxime + metronidazole (standard) versus carbapenem prophylaxis. P value is indicated only when significant (P < 0.05 by Wilcoxon rank sum test)