El-Betany, A. M., Behiry, E. M., Gumbleton, M., & Harding, K. G. (2020). Humidified Warmed CO2 Treatment Therapy Strategies Can Save Lives With Mitigation and Suppression of SARS-CoV-2 Infection: An Evidence Review. Frontiers in Medicine, 7, Article 594295. https://doi.org/10.3389/fmed.2020.594295