Electrical impedance tomography during spontaneous breathing trials and after extubation in critically ill patients at high risk for extubation failure: a multicenter observational... oleh Federico Longhini, Jessica Maugeri, Cristina Andreoni, Chiara Ronco, Andrea Bruni, Eugenio Garofalo, Corrado Pelaia, Camilla Cavicchi, Sergio Pintaudi, Paolo Navalesi