The role of point-of-care ultrasonography in central venous catheter insertion: A randomized controlled trial of safety and cost-effectiveness Ahmed Beniamen; Ahmed Mosallem; Hossam Tharwat Ali; Hanaa A. Nofal; Essamedin M. Negm;

Tratamiento médico del shock cardiogénico Manuel García-Delgado; Raquel Rodríguez-García; Ana Ochagavía; M. Ángeles Rodríguez-Esteban;

Ultrasonography and procedures in intensive care medicine Pablo Blanco; Anselmo Abdo-Cuza; Elena Abril Palomares; Cristina Martínez Díaz; Virginia Fraile Gutiérrez;