Factors influencing witnesses’ perception of patient safety during pre-hospital health care from emergency medical services: A multi-center cross-sectional study

1. Péculo-Carrasco, J.-A.
2. Rodríguez-Ruiz, H.-J.
3. Puerta-Córdoba, A.
4. Rodríguez-Bouza, M.
5. De La Fuente-Rodríguez, J.-M.
6. Failde, I.