Fig. 2From: Effect of routine vs on-demand nebulization of acetylcysteine with salbutamol on accumulation of airway secretions in endotracheal tubes: substudy of a randomized clinical trialFlow of patients in the effect of on-demand vs routine nebulization of acetylcysteine with salbutamol on endotracheal tube occlusion assessed with computed tomography a substudy of the NEBULAE randomized trial. ICU, intensive care unit; ETT, endotracheal tubeBack to article page