Gajos, M., P. Włoszczyk, M. Mioduska, G. Wałęsa, A. Kujawska, J. Androsiuk-Perkowska, R. Perkowski, A. Wnuk-Zaparucha, K. Karczewska, D. Bieniek, J. Husejko, N. Skierkowska, W. Topka, and M. Missima. “Postoperative Functioning of Cardiac Patients. Diagnostic Methods of Postoperative Monitoring and Risk of Mortality”. Journal of Education, Health and Sport, vol. 9, no. 2, Feb. 2019, pp. 437-49, https://apcz.umk.pl/JEHS/article/view/6636.