
ENDOSCOPY: GASTROINTESTINAL: GI: COLON: COLITIS, CROHNS, COLON, APHTHOUS ULCER; B1HM,APHTHOUS ULCER,EARLIEST LESION
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, COLON, APHTHOUS ULCER; B1HM,APHTHOUS ULCER,EARLIEST LESION