"Influenza Virus Vaccine Inactivated". The American Society of Health-System Pharmacists. November 19, 2018. Archived from the original on October 14, 2019. Retrieved October 13, 2019.
World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva: World Health Organization. hdl:10665/325771. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.
"Influenza Virus Vaccine Inactivated". The American Society of Health-System Pharmacists. November 19, 2018. Archived from the original on October 14, 2019. Retrieved October 13, 2019.