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المؤلفون: Ajay Verma, Keith Siau, Neeraj Bhala
المصدر: New England Journal of Medicine. 383:e19
مصطلحات موضوعية: medicine.medical_specialty, medicine.diagnostic_test, business.industry, MEDLINE, Endoscopy, General Medicine, Acute upper gastrointestinal bleeding, Endoscopy, Gastrointestinal, Surgery, Acute Disease, medicine, Humans, Gastrointestinal Hemorrhage, business