title: Letter: Red-blood-cell lithium index and long-term maintenance treatment.
mesh_terms: D001714:Bipolar Disorder / Q000188:drug therapy*; D004912:Erythrocytes / Q000032:analysis*; D006801:Humans; D008094:Lithium / Q000097:blood* / Q000627:therapeutic use
chemical_list: D008094:Lithium