Diaz-Toro, F., Nazar, G., Troncoso, C., Concha-Cisternas, Y., Leiva-Ordoñez, A. M., Martinez-Sanguinetti, M. A., Parra-Soto, S., Lasserre-Laso, N., Cigarroa, I., Mardones, L., Vásquez-Gómez, J., Petermann-Rocha, F., Diaz-Martinez, X., & Celis-Morales, C. (2023). Frailty Index as a Predictor of Mortality in Middle-Aged and Older People: A Prospective Analysis of Chilean Adults. International Journal of Environmental Research and Public Health, 20(2), 1195. https://doi.org/10.3390/ijerph20021195