APA   Click to copy
Brown, J. D., Harnett, J., Chambers, R., & Sato, R. (2018). The relative burden of community-acquired pneumonia hospitalizations in older adults: a retrospective observational study in the United States. BMC Geriatrics, 18, 92.

Chicago/Turabian   Click to copy
Brown, Joshua D, James Harnett, Richard Chambers, and Reiko Sato. “The Relative Burden of Community-Acquired Pneumonia Hospitalizations in Older Adults: a Retrospective Observational Study in the United States.” BMC geriatrics 18 (2018): 92.

MLA   Click to copy
Brown, Joshua D., et al. “The Relative Burden of Community-Acquired Pneumonia Hospitalizations in Older Adults: a Retrospective Observational Study in the United States.” BMC Geriatrics, vol. 18, BioMed Central, 2018, p. 92.

@article{brown2018a,
  title = {The relative burden of community-acquired pneumonia hospitalizations in older adults: a retrospective observational study in the United States},
  year = {2018},
  journal = {BMC geriatrics},
  pages = {92},
  publisher = {BioMed Central},
  volume = {18},
  author = {Brown, Joshua D and Harnett, James and Chambers, Richard and Sato, Reiko}
}