Associations between health-related social capital and oral frailty risk among older adults: A stratified analysis by socioeconomic status in the JAGES longitudinal study - Nanako Tomioka; Yuka Iwata; Yuko Tanaka; Ayuka Yokoyama; Kisaki Kobayashi; Akemi Matsuzawa; Toshiyuki Ojima; Etsuko Tadaka (PLoS ONE, 2026)