title: Lithium addition in treatment-resistant depression.
mesh_terms: D000928:Antidepressive Agents / Q000627:therapeutic use*; D003866:Depressive Disorder / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D006801:Humans; D008094:Lithium / Q000627:therapeutic use*; D016651:Lithium Carbonate
chemical_list: D000928:Antidepressive Agents; D016651:Lithium Carbonate; D008094:Lithium