Ventrella, Francesco, Armando Giancola, Sergio Cappello, Maria Pipino, Graziano Minafra, Mattea Carbone, Luigi Caccetta, Maria Insalata, and Luigi Iamele. 2015. “Use and Performance of Non-Invasive Ventilation in Internal Medicine Ward: A Real-Life Study”. Italian Journal of Medicine 9 (3):260-67. https://doi.org/10.4081/itjm.2015.541.