TY  - RPRT
TI  - A severe headache.
AU  - Beau J Bagley
AU  - Evelyn A Kluka
PY  - 2004
DO  - 10.1177/000992280404300315
UR  - https://pubmed.ncbi.nlm.nih.gov/15094958/
ID  - 15094958
ER  -