APA aipamena

PORRAS VILLAMIL, J. F., & OLIVERA, M. J. (2020). COVID-19: Is Reinfection a Threat or Not? Iran J Public Health.

Chicago Style aipamena

PORRAS VILLAMIL, Julián Felipe, and Mario Javier OLIVERA. "COVID-19: Is Reinfection a Threat or Not?" Iran J Public Health 2020.

MLA aipamena

PORRAS VILLAMIL, Julián Felipe, and Mario Javier OLIVERA. "COVID-19: Is Reinfection a Threat or Not?" Iran J Public Health 2020.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.