@misc{indiciaed300703b2df0, title = {[Functional endoscopic sinus surgery assisted by navigation system--own experience].}, author = {Witold Szyfter and Lukasz Borucki and Tomasz Kopeć and Piotr Sosnowski}, year = {2005}, url = {https://pubmed.ncbi.nlm.nih.gov/15915912/}, note = {Source identifier: 15915912} }