title: Prophylaxis of depression in older people.
mesh_terms: D000368:Aged; D000928:Antidepressive Agents / Q000627:therapeutic use*; D003866:Depressive Disorder / Q000517:prevention & control*; D004311:Double-Blind Method; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012008:Recurrence; D020280:Sertraline / Q000627:therapeutic use*
chemical_list: D000928:Antidepressive Agents; D020280:Sertraline