Noninvasive ventilation weaning in acute hypercapnic respiratory failure due to COPD exacerbation : A real-life observational study - Faverio, Paola (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Stainer, A. (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; De Giacomi, Federica (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Messinesi, Grazia (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Paolini, Valentina (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Monzani, Anna (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Sioli, Paolo (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Memaj, I. (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Sibila, Oriol (Institut d'Investigació Biomèdica Sant Pau) ; Mazzola, P. (Ospedale San Gerardo (Itàlia)) ; Pesci, Alberto (School of Medicine and Surgery. University of Milan Bicocca. Respiratory Unit. San Gerardo Hospital. ASST Monza) ; Universitat Autònoma de Barcelona