Silva Sampai RC, Matos T de P, Santana Alencar KC, Zavala R. Frequency of internation by COVID-19 in the year 2020 in the Regional Hospital of Caacupé. Rev. cient. UMAX [Internet]. 2021 Dec. 20 [cited 2026 Nov. 8];1(2):53-9. Available from: https://revista.umax.edu.py/index.php/rcumax/article/view/18