Heinzmann-Filho, J.P., P.J.C. Marostica, and M.V.F. Donadio. 2015. “Ventilatory Muscle Strength in Cystic Fibrosis Patients: A Literature Review”. Monaldi Archives for Chest Disease 77 (3-4). https://doi.org/10.4081/monaldi.2012.147.