title: Whole blood histamine and plasma serotonin in cluster headache.
mesh_terms: D000328:Adult; D006632:Histamine / Q000097:blood*; D006636:Histamine Release; D006801:Humans; D008875:Middle Aged; D008881:Migraine Disorders / Q000097:blood* / Q000209:etiology; D012701:Serotonin / Q000097:blood* / Q000378:metabolism
chemical_list: D012701:Serotonin; D006632:Histamine