ENDOSCOPY: GASTROINTESTINAL: GI: COLON: COLITIS, CROHNS, SIGMOID, ULCERS; B1HM, ULCERS, LINEAR
Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.
ENDOSCOPY: GASTROINTESTINAL: GI: COLON: COLITIS, CROHNS, SIGMOID, ULCERS; B1HM, ULCERS, LINEAR