Akinci, B., B. K. Kaya, E. P. Kisa, A. Kocyigit, Z. Hosbay, and A. Ozdincler. “The Effects of Covid-19 in Respiratory Functions and Exercise Capacity: A Pilot Study in Young Adults”. Global Journal of Respiratory Care, vol. 7, June 2021, pp. 14-19, doi:10.12974/2312-5470.2021.07.03.