title: Letter: Saliva and serum lithium estimations in psychiatric patients.
mesh_terms: D000342:Affective Symptoms / Q000097:blood / Q000378:metabolism*; D006801:Humans; D008094:Lithium / Q000032:analysis* / Q000097:blood; D012463:Saliva / Q000032:analysis*
chemical_list: D008094:Lithium