Did intubation procedures for critically ill patients without SARS-CoV-2 infection change during the pandemic? Secondary analysis of the INTUPROS multicenter study José Luis García-Garmendia; Josep Trenado-Álvarez; Federico Gordo-Vidal; Elena Gordillo-Escobar; Esther Martínez-Barrios; Fernando Onieva-Calero; Víctor Sagredo-Meneses; Emilio Rodríguez-Ruiz; Rafael Ángel Bohollo-de-Austria; José Moreno-Quintana; María Isabel Ruiz-García; José Garnacho-Montero;

Quality of causality assessment among observational studies in intensive care: A methodological review Laura Del Campo-Albendea; Ana García De La Santa Viñuela; Óscar Peñuelas; José Ignacio Pijoan Zubizarreta; Khalid Saeed Khan; Alfonso Muriel; Javier Zamora;

Effectiveness of non-invasive ventilation in critical patients with acute respiratory failure and do not intubate order Andres Carrillo-Alcaraz; Miguel Guia; Pilar Tornero-Yepez; Laura López-Gomez; Nuria Alonso-Fernandez; Juan Gervasio Martin Lorenzo; Juan Miguel Sanchez Nieto;