The colon and the surgeon.
D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D003106:Colon / Q000382:microbiology / Q000601:surgery*; D004285:Dogs; D006801:Humans; D011300:Preoperative Care; D013530:Surgical Wound Infection / Q000517:prevention & control*
D000900:Anti-Bacterial Agents