<https://www.forbes.com/sites/aayushipratap/2021/07/28/pfizer-expects-335-billion-in-vaccine-revenue-in-2021/>
Pfizer Expects $33.5 Billion In Vaccine Revenue In 2021
<https://www.forbes.com/sites/aayushipratap/2021/07/28/pfizer-expects-335-billion-in-vaccine-revenue-in-2021/>
<https://www.forbes.com/sites/aayushipratap/2021/07/28/pfizer-expects-335-billion-in-vaccine-revenue-in-2021/>
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