Post-op pneumonia said not reduced by anesthesia filters.
D000776:Anesthesiology / Q000295:instrumentation*; D004209:Disposable Equipment; D006801:Humans; D008851:Micropore Filters; D011014:Pneumonia / Q000517:prevention & control*; D011183:Postoperative Complications / Q000517:prevention & control*; D014589:Utah