Thomas Crampton@ThomasCramptonExciting day for GreenLight!Quote TweetGreenLight Biosciences@GreenLightBio1·Feb 1GreenLight Biosciences receives approval to initiate Phase I/II clinical trial of Covid-19 mRNA vaccine candidate https://greenlightbiosciences.com/greenlight-biosciences-receives-approval-to-initiate-phase-i-ii-clinical-trial-of-covid-19-mrna-vaccine-candidate/…5:05 PM · Feb 1, 2023·158 Views1 Like