title: Case report: chronic cluster headache with unusual high frequency of attacks. Differential diagnosis with CPH.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003027:Cluster Headache / Q000175:diagnosis* / Q000188:drug therapy; D003937:Diagnosis, Differential; D006801:Humans; D007213:Indomethacin / Q000627:therapeutic use; D008094:Lithium / Q000627:therapeutic use; D008297:Male; D008881:Migraine Disorders / Q000175:diagnosis*; D013997:Time Factors; D014653:Vascular Headaches / Q000175:diagnosis*
chemical_list: D008094:Lithium; D007213:Indomethacin