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Чикаго-гийн эшлэл (17 дахь хэвлэлт)Oakland, K., et al. Diagnosis and Management of Acute Lower Gastrointestinal Bleeding: Guidelines from the British Society of Gastroenterology. BMJ, 2019.
MLA -ийн эшлэл (9 дэх хэвлэлт)Oakland, K., et al. Diagnosis and Management of Acute Lower Gastrointestinal Bleeding: Guidelines from the British Society of Gastroenterology. BMJ, 2019.
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