ENDOSCOPY: GASTROINTESTINAL: GI: ESOPHAGUS: ESOPHAGEAL RING; ESOPHAGUS, LOWER, MUCOSAL RING; A2BB ESOPHAGEAL RING,GERD,DYSPHAGIA
Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.
ENDOSCOPY: GASTROINTESTINAL: GI: ESOPHAGUS: ESOPHAGEAL RING; ESOPHAGUS, LOWER, MUCOSAL RING; A2BB ESOPHAGEAL RING,GERD,DYSPHAGIA