title: Letter: Oral dihydroergotamine in management of cluster headache.
mesh_terms: D000284:Administration, Oral; D004087:Dihydroergotamine / Q000008:administration & dosage* / Q000627:therapeutic use; D004879:Ergotamines; D005260:Female; D006801:Humans; D008875:Middle Aged; D008881:Migraine Disorders / Q000188:drug therapy*
chemical_list: D004879:Ergotamines; D004087:Dihydroergotamine