title: Doxycycline esophageal ulcer.
mesh_terms: D000328:Adult; D001706:Biopsy; D004318:Doxycycline / Q000009:adverse effects*; D004935:Esophageal Diseases / Q000139:chemically induced*; D004947:Esophagus / Q000473:pathology; D006801:Humans; D008297:Male; D012852:Sinusitis / Q000188:drug therapy; D014456:Ulcer / Q000139:chemically induced
chemical_list: D004318:Doxycycline