Analysis of availability, training, and use of ultrasound by nurses in intra- and extrahospital emergency services: A national survey. - Yago-Rios S; Montejano-Lozoya R; Valentín-Martín L; Casal-Angulo C; Quintairos-Manso B; Rodríguez-Herrera Á; Manrique-Ortiz VI; Prieto-González J; Miranda-Domínguez JC; Soler-Sanchís À; Sánchez-Ballesteros P; Solaz-García Á (Enfermeria intensiva, 2025)