U.S. health officials question results from AstraZeneca’s vaccine trial(nytimes.com)

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U.S. health officials question results from AstraZeneca’s vaccine trial

https://www.nytimes.com/2021/03/22/world/us-health-officials-question-results-from-astrazenecas-vaccine-trial-less-than-a-day-after-theyre-released.html

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