Andrade, A., Dominski, F. H., Pereira, M. L., Liz, C. M. de, & Buonanno, G. (2018). <b&gt;Fitness centers demonstrate CO2 concentration levels above recommended standards. Acta Scientiarum. Health Sciences, 40(1), e35768. https://doi.org/10.4025/actascihealthsci.v40i0.35768