Schwartz, Laurent, Mohammad Abolhassani, Adelina Guais, Gianfranco Baronzino, Georges Grévillot, Philippe Chaumet-Riffaud, and Annie J. Sasco. 2009. “The Toxicity of Carbon Dioxide Inhalation”. European Journal of Oncology and Environmental Health 14 (4): 199-208. https://mattioli1885journals.com/index.php/EJOEH/article/view/3884.