The Madrid Loneliness Questionnaire (MLQ): Development and Validation in the Contemporary Sociocultural Context - Esteban-Rodríguez, L., González-Espejito, F., Díaz-Zubiaur, E., Sevilla-Martínez, J.V., Haro-León, A., Pedrero-Pérez, E.J., Lillo-López, E., & Blasco-Novalbos, G. (2025)