ENDOSCOPY: GASTROINTESTINAL: GI: DUODENUM: ULCER,PEPTIC;DUODENUM,BULB,STIGMATA,RED SPOT; A2IS,RED SPOT,STIGMATA
PEIR Digital Library
Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.
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