Covigilant Research, LLC Clinical Trials Site Management Organization

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US restricts use of Johnson & Johnson Covid vaccine over rare blood clot risk – The Guardian

US authorities for months have recommended that Americans starting their Covid-19 vaccinations use the Pfizer or Moderna shots instead. FDA officials …Read MoreUS authorities for months have recommended that Americans starting their Covid-19 vaccinations use the Pfizer or Moderna shots instead. FDA officials …

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