TY  - RPRT
TI  - Lithium prophylaxis for chronic cluster headache.
AU  - L Kudrow
PY  - 1977
DO  - 10.1111/j.1526-4610.1977.hed1701015.x
UR  - https://pubmed.ncbi.nlm.nih.gov/845021/
ID  - 845021
ER  -