Siermontowski P, Kobos Z, Olszański R, et al. Assessment on the impact of hyperbaric environment – nitrogen narcosis on brain functions and perception during air saturation by use of arithmetic test. Curr Probl Psychiatry. 2011;12(2):137-140. Accessed June 7, 2025. https://czasopisma.umlub.pl/cpp/article/view/2376