Lax, Agata, Simona Colamartino, Paolo Banfi, and Antonello Nicolini. “Sleep-Related Breathing Disorders and Non-Invasive Ventilation”. Italian Journal of Medicine 9, no. 2 (May 8, 2015): 109-115. Accessed November 22, 2019. https://www.italjmed.org/index.php/ijm/article/view/itjm.2015.395.