TY  - RPRT
TI  - Chronic paroxysmal hemicrania: recent developments.
AU  - O Sjaastad
PY  - 1987
DO  - 10.1046/j.1468-2982.1987.0703179.x
UR  - https://pubmed.ncbi.nlm.nih.gov/3308115/
ID  - 3308115
ER  -