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Continue to ChatObjective: Previous studies show conflicting results in the diagnostic yield of oesophagogastroduodenoscopy (OGD) and colonoscopy in identifying potential bleeding sources (PBS) in patients investigated for occult gastrointestinal bleeding (OGIB) https://www.umdaa.co/blogs/1440/a-prospective-study-of-same-day-bi-directional-endoscopy-in-the-evaluation-of-patients-with-occult-gastrointestinal-bleeding