الصفحة الرئيسيةScinence Pfizer says expects covid vaccine results by next month bhavesh سبتمبر 12, 2020 0 تعليقات Facebook Twitter If the study is successful, Pfizer could submit the vaccine for regulatory approval as early as October from mint - Science https://ift.tt/2Rm0lhz https://ift.tt/eA8V8J Tags Scinence Facebook Twitter
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