TY  - RPRT
TI  - Directed functional endoscopic sinus surgery and headaches.
AU  - D O Becker
AU  - D M Cunning
PY  - 2000
DO  - 10.1001/archotol.126.10.1274
UR  - https://pubmed.ncbi.nlm.nih.gov/11031419/
ID  - 11031419
ER  -