MALONEY, J V Importance of negative pressure phase in mechanical respirators. [electronic resource] - Journal of the American Medical Association May 1953 - 212-6 p. digital Publication Type: Journal Article ISSN: 0002-9955 Standard No.: 10.1001/jama.1953.03690030012004 doi Subjects--Topical Terms: Ventilators, MechanicalVentilators, Negative-Pressure