TY  - RPRT
TI  - Ergotamine, dihydroergotamine: current uses and problems.
AU  - P Tfelt-Hansen
PY  - 2001
DO  - 10.1185/0300799039117009
UR  - https://pubmed.ncbi.nlm.nih.gov/12463275/
ID  - 12463275
ER  -