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;

Exploring volatile anesthetics in critical care: Facts and uncertainties José Manuel Añón; María Paz Escuela; Javier Oliva-Navarro; Arís Pérez-Lucendo; Fernando Suarez-Sipmann;

Hypernatremia and renal dysfunction after sevoflurane sedation in the intensive care unit: Three case reports Marta Bauça Socias; Dolly Andrea Caicedo; Eva Benveniste-Pérez; Georgina de la Rosa Loppacher; Eva Montané;