Soledad en el adulto mayor durante la pandemia COVID-19 en Torreón, Coahuila. México. Paraninfo Digital, [S. l.], n. 33, p. e33119v, 2021. Disponível em: https://staging.ciberindex.com/index.php/pd/article/view/e33119v. Acesso em: 4 abr. 2026.