(1992). Guidelines for Good Practice in and Audit of the Management of Upper Gastrointestinal Haemorrhage: Report of a Joint Working Group of the British Society of Gastroenterology and the Research Unit of the Royal College of Physicians of London and the Audit Unit of the Royal College of Surgeons of England. J R Coll Physicians Lond.
Chicago-tyylinen lähdeviittaus"Guidelines for Good Practice in and Audit of the Management of Upper Gastrointestinal Haemorrhage: Report of a Joint Working Group of the British Society of Gastroenterology and the Research Unit of the Royal College of Physicians of London and the Audit Unit of the Royal College of Surgeons of England." J R Coll Physicians Lond 1992.
MLA-viite"Guidelines for Good Practice in and Audit of the Management of Upper Gastrointestinal Haemorrhage: Report of a Joint Working Group of the British Society of Gastroenterology and the Research Unit of the Royal College of Physicians of London and the Audit Unit of the Royal College of Surgeons of England." J R Coll Physicians Lond 1992.