1. • ERS whitebook—burden of lung disease. The white book presents a rigorous examination of lung health and disease in Europe as it stands and an informed analysis of future trends.
2. Buist AS, McBurnie MA, Vollmer WM, Gillespie S, Burney P, Mannino DM, et al. International variation in the prevalence of COPD (the BOLD Study): a population-based prevalence study. Lancet. 2007;370(9589):741–50.
3. Tiep BL. Continuous flow oxygen therapy. In: Tiep BL, editor. Portable oxygen therapy: including oxygen conserving methodology. Mt. Kisco, Futura Publishing Co. p. 205–220
4. Burton GG, Hodgkin JE, Ward JJ. Respiratory care—a guide to clinical practice. 4th ed. Philidelphia: Lippincott-Raven Pub co; 1997. p. 381–95.
5. Frizzola M, Miller TL, Rodriguez ME, Zhu Y, Rojas J, Hesek A, et al. High-flow nasal cannula: impact on oxygenation and ventilation in an acute lung model. Pediatr Pulmonol. 2011;46:67–74.