Krachman, S. L., Tiwari, R., Vega, M. E., Yu, D., Soler, X., Jaffe, F., . . . Criner, G. J. (2016). Effect of Emphysema Severity on the Apnea–Hypopnea Index in Smokers with Obstructive Sleep Apnea. Ann Am Thorac Soc.
Chicago-tyylinen lähdeviittausKrachman, Samuel L., et al. "Effect of Emphysema Severity On the Apnea–Hypopnea Index in Smokers With Obstructive Sleep Apnea." Ann Am Thorac Soc 2016.
MLA-viiteKrachman, Samuel L., et al. "Effect of Emphysema Severity On the Apnea–Hypopnea Index in Smokers With Obstructive Sleep Apnea." Ann Am Thorac Soc 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.