ORGANIZATION OF OXYGEN THERAPY USING A NASAL MASK AND VENTURA MASK IN SEVERE PATIENTS WITH COVID-19 CORONA VIRUS INFECTION. Eme. Jou. Edu. Dis.Lif. Lea. [Internet]. 2021 Aug. 24 [cited 2026 May 10];2(08):6-10. Available from: https://ejedl.academiascience.org/index.php/ejedl/article/view/124