Transnasal butorphanol in the treatment of acute migraine.
Hoffert MJ, Couch JR, Diamond S, Elkind AH, Goldstein J, Kohlerman NJ 3rd, Saper JR, Solomon S.
Hoffert MJ, et al. Among authors: couch jr.
Headache. 1995 Feb;35(2):65-9. doi: 10.1111/j.1526-4610.1995.hed3502065.x.
Headache. 1995.
PMID: 7737863
Clinical Trial.