Operational guidance on establishing an ultra-cold chain system in support of the Pfizer-BioNTech COVID-19 vaccine rollout, 1 February 2022
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World Health Organization & United Nations Children's Fund (UNICEF). (2022). Operational guidance on establishing an ultra-cold chain system in support of the Pfizer-BioNTech COVID-19 vaccine rollout, 1 February 2022. World Health Organization. https://iris.who.int/handle/10665/351494. License: CC BY-NC-SA 3.0 IGO
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27 p.Document number
WHO/2019-nCoV/UCC_systems/Pfizer-BioNTech_vaccine/2022.1Language
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