@article{constantine katsanoulas2008isolated,
  title={Acute isolated sphenoid sinusitis in a 4-year-old child: a rare case with an atypical presentation},
  author={aikaterini monti,constantine katsanoulas,maria farini},
  journal={Signa Vitae},
  volume={3},
  number={1},
  pages={51--54},
  doi = {10.22514/SV31.042008.8},
  year={2008}
}