Vishniakov, Dmitry, Naken Kasiev, and Fatima Abdrasulova. “Healthcare System Efficiency and Its Drivers in Pre- and COVID-19 Pandemic Settings”. Business, Management and Economics Engineering 21, no. 2 (December 28, 2023): 293–310. Accessed November 1, 2024. https://gc.vgtu.lt/index.php/BMEE/article/view/20409.