Karmiza, Karmiza, Muharriza Muharriza, and Emil Huriani. 2017. “Left Lateral Positioning With Head Elevation Increase The Partial Pressure of Oxygen on Patients With Mechanical Ventilation”. Jurnal Ners 9 (1):59-65. https://doi.org/10.20473/jn.v9i1.2979.