Do Negative Self-Perceptions of Aging Influence Partner Loneliness? The Mediating Role of Relationship Effort and the Moderating Role of Relationship Value - Pires, Jose Adrian Fernandes; Garcia, Laura Garcia; Perez-Cardona, Luis Manuel; Quintana-Alvarez, Ana Xiaofu; Benito-Rincon, Claudia; Baltar, Andres Losada (International Psychogeriatrics, 2025)