Second victim syndrome among nursing professionals as a result of COVID-19: qualitative research - Corral-Liria I; Losa-Iglesias M; Becerro-De-Bengoa-Vallejo R; Herraiz-Soria E; Calvo-Lobo C; San-Antolín-Gil M; González-Martín S; Jimenez-Fernández R (Bmc Nursing, 2025)