Baseline associations between thoracic expansion, respiratory function, and pain in nonspecific low back pain: A cross-sectional analysis from the DIAFRAGMA trial - Francisco José Vera-Serrano; Maria Jesus Vinolo-Gil; María Rebollo-Ramos; María-José Estebanez-Pérez; José-Manuel Pastora-Bernal; Juan Antonio Díaz-Mancha (PLoS ONE, 2026)