As the US set a new daily record for Covid-19 inoculations and states clamored for more vaccine supplies, Pfizer and the FDA said pharmacists and health practitioners can in some cases extract an additional dose from each vial.
원문출처 : https://www.cnn.com/2021/01/23/us/us-coronavirus-saturday/index.html
원문출처 : https://www.cnn.com/2021/01/23/us/us-coronavirus-saturday/index.html