Twaróg, S. and Ojrzyńska, A. 2018. Usability of Spatial Analysis for Improving the Functioning of the Blood Donation System in Poland. Acta Universitatis Lodziensis. Folia Oeconomica. 3, 335 (May 2018), 7–19. DOI:https://doi.org/10.18778/0208-6018.335.01.