title: A randomized controlled trial of ergotamine tartrate.
mesh_terms: D002986:Clinical Trials as Topic; D004878:Ergotamine / Q000009:adverse effects / Q000627:therapeutic use; D005260:Female; D006261:Headache / Q000175:diagnosis; D006801:Humans; D008881:Migraine Disorders / Q000175:diagnosis* / Q000188:drug therapy; D010919:Placebos
chemical_list: D010919:Placebos; D004878:Ergotamine