Preliminary feasibility and clinical utility of the Unified Protocol for the transdiagnostic treatment of emotional disorders in people with long COVID-19 condition: A single case pilot study - Verónica Martínez-Borba; Óscar Peris-Baquero; Iván Prieto-Rollán; Jorge Osma; Esther del Corral-Beamonte (PLoS ONE, 2025)