Effectiveness and acceptability of the unified protocol for the transdiagnostic treatment of emotional disorders in people with long COVID-19: Study protocol for a randomized controlled trial. - Martínez-Borba, Verónica; Rodríguez-Márquez, Andrés E.; Garcés-Arilla, Sara; Peris-Baquero, Óscar; Navarro-Haro, María Vicenta; del Corral-Beamonte, Esther; Osma, Jorge (PLoS ONE, 2026)