Medina-Fernández, J. A., Medina-Fernández, I. A. ., Torres-Soto, N. Y. ., Cortez-González, L. C. ., Rascón-Arriaga, F. G. ., & Cortes-Montelongo, D. B. . (2022). Effect of Fear, Concern, and of Risk Factors for Complicated Covid-19 on Self-Care in People in Pre-elderly and Elderly Stages. Investigación Y Educación En Enfermería, 40(3). https://doi.org/10.17533/udea.iee.v40n3e10.