Włach, Rafał, Piotr Książek, Bartłomiej Drop, and Joanna Tkaczuk-Włach. “The Assessment of Functionality of the Diagnosis-Related Group (DGR) System by Its Users”. Polish Journal of Public Health 123, no. 1 (January 1, 2013): 3–6. Accessed August 3, 2025. https://czasopisma.umlub.pl/pjph/article/view/1357.