Introduction to the update series: update in intensive care medicine: ultrasound in the critically ill patient. Clinical applications Ana Ochagavía; Virginia Fraile; Lluis Zapata;

Linezolid continuous infusion protects from subtherapeutic linezolid concentrations in critically ill patients Leonardo Lorente; Jonathan González García; Sergio Pérez Reyes; Cristo Yared Pérez Martín; Mario Rodín; Santiago Viera; Alejandro Jiménez;

Abdominal ultrasound and VExUS score in critical care Laura Galarza Barrachina; Laura Colinas Fernández; Rafael Martín Bermúdez; Adela Fernández Galilea; Luis Martín-Villén;