Widjanantie, Siti Chandra, and Ferius Soewito. 2021. “Case Report: Non Invasif Ventilator As an Alternative in Improving Diaphragma Movement, Peak Flow Expiration and End Tidal Carboncioxide of Laringectomees”. Journal Of The Indonesian Medical Association 71 (3), 146-50. https://doi.org/10.47830/jinma-vol.71.3-2021-614.