DOI:
10.1055/s-00000012
Endoscopy
LinksClose Window
References
Centers for Disease Control and Prevention (CDC).
Why CDC measures vaccine effectiveness [cited 2020 Sep 4].
Available from:
https://www.cdc.gov/coronavirus/2019-ncov/vaccines/effectiveness/why-measure-effectiveness/breakthrough-cases.html
We do not assume any responsibility for the contents of the web pages of other providers.