Headache; with special reference to the excessive use of ergotamine tartrate and dihydroergotamine.
PETERS
G A
GA
HORTON
B T
BT
D004087:Dihydroergotamine; D004874:Ergonovine; D004876:Ergot Alkaloids / Q000627:therapeutic use*; D004878:Ergotamine; D006261:Headache
D004876:Ergot Alkaloids; D004087:Dihydroergotamine; D004878:Ergotamine; D004874:Ergonovine