title: Doxycycline-induced esophageal ulceration: do old capsules play a role?
mesh_terms: D002214:Capsules; D004318:Doxycycline / Q000009:adverse effects*; D004355:Drug Stability; D004935:Esophageal Diseases / Q000139:chemically induced*; D006801:Humans; D014456:Ulcer / Q000139:chemically induced
chemical_list: D002214:Capsules; D004318:Doxycycline