Depression resistant to tricyclic antidepressants.
D000929:Antidepressive Agents, Tricyclic / Q000627:therapeutic use; D003866:Depressive Disorder / Q000188:drug therapy*; D006801:Humans; D008094:Lithium / Q000627:therapeutic use*
D000929:Antidepressive Agents, Tricyclic; D008094:Lithium