APA (7th ed.) Citation

Zein, J. G., Dweik, R. A., Comhair, S. A., Bleecker, E. R., Moore, W. C., Peters, S. P., . . . Erzurum, S. C. (2015). Asthma Is More Severe in Older Adults. PloS one, 10(7), e0133490. https://doi.org/10.1371/journal.pone.0133490

Chicago Style (17th ed.) Citation

Zein, Joe G., et al. "Asthma Is More Severe in Older Adults." PloS One 10, no. 7 (2015): e0133490. https://doi.org/10.1371/journal.pone.0133490.

MLA (9th ed.) Citation

Zein, Joe G., et al. "Asthma Is More Severe in Older Adults." PloS One, vol. 10, no. 7, 2015, p. e0133490, https://doi.org/10.1371/journal.pone.0133490.