Clason, A E Clinical factors in the prediction of further haemorrhage or mortality in acute upper gastrointestinal haemorrhage. [electronic resource] - The British journal of surgery Dec 1986 - 985-7 p. digital Publication Type: Journal Article ISSN: 0007-1323 Standard No.: 10.1002/bjs.1800731213 doi Subjects--Topical Terms: Gastrointestinal Hemorrhage--diagnosisHumansProspective StudiesRecurrenceRisk