 @article{souza_evangelista_silva_périco_madeira_2016,  title={Cervical computed tomography in patients with obstructive sleep apnea: influence of head elevation on the assessment of upper airway volume},  volume={42},  ISSN={1806-3713},  url={https://doi.org/10.1590/S1806-37562016000000092},  DOI={10.1590/S1806-37562016000000092},  number={1},  journal={Jornal Brasileiro de Pneumologia},  publisher={Sociedade Brasileira de Pneumologia e Tisiologia},  author={Souza, Fábio José Fabrício de Barros and Evangelista, Anne Rosso and Silva, Juliana Veiga and Périco, Grégory Vinícius and Madeira, Kristian},  year={2016},  month={Jan},  pages={55–60} }