title: Endoscopic measurement of transmucosal potential differences for evaluation of gastroduodenal lesions.
mesh_terms: D000328:Adult; D004386:Duodenum; D004724:Endoscopy; D005753:Gastric Mucosa / Q000503:physiopathology*; D005756:Gastritis / Q000175:diagnosis*; D006801:Humans; D007413:Intestinal Mucosa / Q000503:physiopathology*; D008564:Membrane Potentials; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis*