APA (7th ed.) Citation

I, R., JJ, D., JL, A., B, S., I, C., B, A., . . . M, B. (2021). Convalescent plasma treatment for patients of 80 years and older with COVID-19 pneumonia. BMC geriatrics, 21(1), 566. https://doi.org/10.1186/s12877-021-02447-9

Chicago Style (17th ed.) Citation

I, Romon, et al. "Convalescent Plasma Treatment for Patients of 80 Years and Older with COVID-19 Pneumonia." BMC Geriatrics 21, no. 1 (2021): 566. https://doi.org/10.1186/s12877-021-02447-9.

MLA (9th ed.) Citation

I, Romon, et al. "Convalescent Plasma Treatment for Patients of 80 Years and Older with COVID-19 Pneumonia." BMC Geriatrics, vol. 21, no. 1, 2021, p. 566, https://doi.org/10.1186/s12877-021-02447-9.