M. E. Flores-Villavicencio, C. R. Romero-Valadez, M. C. Espinel-Bermúdez, M. G. Vega-López, M. A. Valle-Barbosa, and J. R. Robles Bañuelos, “Depressive symtoms in older adults with suicidal ideation”, RAG, vol. 11, no. 11, pp. 40–63, Nov. 2019.