Comparing lung aeration and respiratory effort using two different spontaneous breathing trial: T-piece vs pressure support ventilation Raquel Bosch-Compte; Francisco José Parrilla; Rosana Muñoz-Bermúdez; Irene Dot; Cristina Climent; Joan Ramon Masclans; Judith Marin-Corral; Purificación Pérez-Terán;

Role of ultrasound in acute respiratory failure and in the weaning of mechanical ventilation Luis Zapata; Rafael Blancas; Isabel Conejo-Márquez; Marina García-de-Acilu;

Narrative review of ultrasound in the management of the critically ill patient with SARS-CoV-2 infection (COVID-19): clinical applications in intensive care medicine V. Fraile Gutiérrez; J.M. Ayuela Azcárate; D. Pérez Torres; L. Zapata; A.L. Rodríguez Yakushev; A. Ochagavía Calvo;