Benalcazar, M. E.; Cifuentes, C. I. L.; Ona, J. M. M.; Caraguay, A. L. V.; Lopez, L. I. B. Analysis of the Excess Deaths in Ecuador Caused by the COVID-19 During 2020 and 2021. Eng. Technol. Appl. Sci. Res. 2025, 15, 19615-19626.