Citação norma APA

Hansen, C. H., Michlmayr, D., Gubbels, S. M., Mølbak, K., & Ethelberg, S. (2021). Assessment of protection against reinfection with SARS-CoV-2 among 4 million PCR-tested individuals in Denmark in 2020: A population-level observational study. Lancet.

Citação norma Chicago

Hansen, Christian Holm, Daniela Michlmayr, Sophie Madeleine Gubbels, Kåre Mølbak, and Steen Ethelberg. "Assessment of Protection against Reinfection With SARS-CoV-2 Among 4 Million PCR-tested Individuals in Denmark in 2020: A Population-level Observational Study." Lancet 2021.

Citação norma MLA

Hansen, Christian Holm, et al. "Assessment of Protection against Reinfection With SARS-CoV-2 Among 4 Million PCR-tested Individuals in Denmark in 2020: A Population-level Observational Study." Lancet 2021.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.