World Health Organization (WHO) added oxygen to the WHO Model list of essential medicines (EML) in June 2017
Oxygen Therapy-639.pdf [Internet]. [cited 2022 Jul 10]. Available from: https://www.noveltyjournals.com/upload/paper/Oxygen%20Therapy-639.pdf
Ridler N, Plumb J, Grocott M. Oxygen Therapy in Critical Illness: Friend or Foe? A Review of Oxygen Therapy in Selected Acute Illnesses. J Intensive Care Soc. 2014 Jul 1;15(3):190–8.