Tau, N Free abdominal gas on computed tomography in the emergency department: aetiologies and association between amount of free gas and mortality. [electronic resource] - Annals of the Royal College of Surgeons of England Oct 2020 - 581-589 p. digital Publication Type: Journal Article ISSN: 1478-7083 Standard No.: 10.1308/rcsann.2020.0057 doi Subjects--Topical Terms: AdultAgedDiverticulitis, Colonic--complicationsEmergency Service, HospitalFemaleGastrointestinal Diseases--complicationsHumansMaleMiddle AgedPneumoperitoneum--diagnostic imagingPrognosisRetrospective StudiesTomography, X-Ray Computed