Prevention of Gram-Negative Bacillary Pneumonia Using Aerosol Polymyxin as Prophylaxis. I. EFFECT ON THE COLONIZATION PATTERN OF THE UPPER RESPIRATORY TRACT OF SERIOUSLY ILL PATIENTS

^{Department of Medicine of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Department of Anaesthesia of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Infectious Disease Unit, Beth Israel-Children's Hospital Medical Center, Boston, Massachusetts 02215}

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^{Department of Medicine of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Department of Anaesthesia of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Infectious Disease Unit, Beth Israel-Children's Hospital Medical Center, Boston, Massachusetts 02215}

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^{Department of Medicine of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Department of Anaesthesia of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

^{Infectious Disease Unit, Beth Israel-Children's Hospital Medical Center, Boston, Massachusetts 02215}

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^{Department of Medicine of the Harvard Medical School, Beth Israel Hospital, Boston, Massachusetts 02215}

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^{Infectious Disease Unit, Beth Israel-Children's Hospital Medical Center, Boston, Massachusetts 02215}

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