Risk factors of COVID-19 breakthrough infection: a case-control test-negative design study. - Tejada-Panduro, Gabriela; Pinós-Tella, Laia; Otero-Romero, Susana; Borras-Bermejo, Blanca; Carbones, Ingrid; Antón, Andrés; Andrés, Cristina; Parés-Badell, Oleguer (BMC Infectious Diseases, 2025)