TY  - RPRT
TI  - Is it migraine or cluster?
AU  - R W Evans
AU  - S Solomon
PY  - 2000
DO  - 10.1046/j.1526-4610.2000.040008694.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10971670/
ID  - 10971670
ER  -