APA (7th ed.) Citation

McAllister, D. A., Ahmed, F. S., Austin, J. H. M., Henschke, C. I., Keller, B. M., Lemeshow, A., . . . Barr, R. G. (2014). Emphysema Predicts Hospitalisation and Incident Airflow Obstruction among Older Smokers: A Prospective Cohort Study. PLoS ONE, 9(4), 1. https://doi.org/10.1371/journal.pone.0093221

Chicago Style (17th ed.) Citation

McAllister, David A., et al. "Emphysema Predicts Hospitalisation and Incident Airflow Obstruction Among Older Smokers: A Prospective Cohort Study." PLoS ONE 9, no. 4 (2014): 1. https://doi.org/10.1371/journal.pone.0093221.

MLA (9th ed.) Citation

McAllister, David A., et al. "Emphysema Predicts Hospitalisation and Incident Airflow Obstruction Among Older Smokers: A Prospective Cohort Study." PLoS ONE, vol. 9, no. 4, 2014, p. 1, https://doi.org/10.1371/journal.pone.0093221.