TY  - RPRT
TI  - Functional endoscopic sinus surgery.
AU  - V D Bear
PY  - 1991
DO  - 10.5694/j.1326-5377.1991.tb142231.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1875839/
ID  - 1875839
ER  -