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Reuters | Sciencx (2024-03-29T06:08:40+00:00) » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine. Retrieved from https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/.
MLA" » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine." Reuters | Sciencx - Friday July 23, 2021, https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/
HARVARDReuters | Sciencx Friday July 23, 2021 » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine., viewed 2024-03-29T06:08:40+00:00,<https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/>
VANCOUVERReuters | Sciencx - » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine. [Internet]. [Accessed 2024-03-29T06:08:40+00:00]. Available from: https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/
CHICAGO" » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine." Reuters | Sciencx - Accessed 2024-03-29T06:08:40+00:00. https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/
IEEE" » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine." Reuters | Sciencx [Online]. Available: https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/. [Accessed: 2024-03-29T06:08:40+00:00]
rf:citation » U.S. buys 200 million more doses of Pfizer/BioNTech COVID-19 vaccine | Reuters | Sciencx | https://www.scien.cx/2021/07/23/u-s-buys-200-million-more-doses-of-pfizer-biontech-covid-19-vaccine/ | 2024-03-29T06:08:40+00:00
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