TY  - RPRT
TI  - Ergotamine headache.
AU  - P G Andersson
PY  - 1975
DO  - 10.1111/j.1526-4610.1975.hed1502118.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1150427/
ID  - 1150427
ER  -