M. Furtak, P. Książek, E. Warchoł-Sławińska, B. Drop, K. Włoch, and E. Kulbaka, “Development of the health care market – forecasts for the future”, Pol J Public Health, vol. 121, no. 1, pp. 76–80, Jan. 2011, Accessed: Aug. 04, 2025. [Online]. Available: https://czasopisma.umlub.pl/pjph/article/view/1904