%0 Journal Article %T Lung aeration and ventilation after percutaneous tracheotomy measured by electrical impedance tomography in non-hypoxemic critically ill patients: a prospective observational study %A Christian Z£¿llner %A Inez Frerichs %A Jakob Mueller %A J£¿rn Grensemann %A Lars Eichler %J Archive of "Annals of Intensive Care". %D 2018 %R 10.1186/s13613-018-0454-y %X Patient characteristic %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238017/