Random allocation in clinical trials.
D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001424:Bacterial Infections / Q000517:prevention & control*; D002986:Clinical Trials as Topic; D003106:Colon / Q000601:surgery*; D006805:Human Experimentation; D006801:Humans; D012107:Research Design / Q000592:standards; D018570:Risk Assessment
D000900:Anti-Bacterial Agents