R. . Borek-Wojciechowska and S. . Kłokow, “CE marking as a necessary requirement of free marketing and use of medical products”, Pol J Public Health, vol. 119, no. 1, pp. 99–104, Jan. 2009, Accessed: Aug. 07, 2025. [Online]. Available: https://czasopisma.umlub.pl/pjph/article/view/2276