title: A new endoscopic finding of tetracycline-induced esophageal ulcers.
mesh_terms: D000328:Adult; D004724:Endoscopy; D004935:Esophageal Diseases / Q000209:etiology*; D006801:Humans; D008297:Male; D013752:Tetracycline / Q000009:adverse effects*; D014456:Ulcer / Q000209:etiology
chemical_list: D013752:Tetracycline