APA-Zitierstil (7. Ausg.)

Sudharsanan, N., Didzun, O., Bärnighausen, T., & Geldsetzer, P. (2020). The contribution of the age distribution of cases to COVID-19 case fatality across countries: A 9-country demographic study. Annals of internal medicine, 173(9), . https://doi.org/10.7326/M20-2973

Chicago-Zitierstil (17. Ausg.)

Sudharsanan, Nikkil, Oliver Didzun, Till Bärnighausen, und Pascal Geldsetzer. "The Contribution of the Age Distribution of Cases to COVID-19 Case Fatality Across Countries: A 9-country Demographic Study." Annals of Internal Medicine 173, no. 9 (2020). https://doi.org/10.7326/M20-2973.

MLA-Zitierstil (9. Ausg.)

Sudharsanan, Nikkil, et al. "The Contribution of the Age Distribution of Cases to COVID-19 Case Fatality Across Countries: A 9-country Demographic Study." Annals of Internal Medicine, vol. 173, no. 9, 2020, https://doi.org/10.7326/M20-2973.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.