TY  - RPRT
TI  - Secondary cluster headache responsive to sumatriptan.
AU  - P D Cremer
AU  - G M Halmagyi
AU  - P J Goadsby
PY  - 1995
DO  - 10.1136/jnnp.59.6.633
UR  - https://pubmed.ncbi.nlm.nih.gov/7500105/
ID  - 7500105
ER  -