CallahamM., & RaskinN., A controlled study of DHE in the treatment of acute migraine headache.Headache, 26: 168–171, 1986.
2.
BelgradeM., LingL., SchleevogtM., EttingerM., & RuizE., Comparison of single dose Meperidine, Butorphanol, and DHE in the treatment of vascular headache.Neurology, 39: 590–592, 1989.
3.
GallagherR., Emergency treatment in intractable migraine.Headache, 26: 74–75, 1986.