PFE/BNTX seek_amended_FDA/EUA_obviating_need_for_ultra-cold_storage_of_COVID_vaccine: https://www.globenewswire.com/news-release/2021/02/19/2178817/0/en/Pfizer-and-BioNTech-Submit-COVID-19-Vaccine-Stability-Data-at-Standard-Freezer-Temperature-to-the-U-S-FDA.html