Catastrophic and exorbitant out-of-pocket expenses during COVID-19 hospitalization in the Encarnación public sector in 2021. Rev. sobre estud. investig. saber acad. [Internet]. 2022 Feb. 7 [cited 2025 Oct. 21];(16): e2022002 . Available from: https://revistas.uni.edu.py/index.php/rseisa/article/view/249