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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HISTOLOGY: GASTROINTESTINAL: GI: DUODENUM: APUD CELL, CRYPT LIEBERKUHN, ENTEROENDOCRINE; APUD OUTLINED YELLOW, GOBLET CELL, BLUE, TARGA DIRECT