![](https://v2.anonup.com/upload/avatars/2021/03/ndXFhM4ko1F3swT2G9gt_20_25b06ea0b7d45065152f2afa7a8afa22_thumbnail_512x512.jpg)
Corona children studies “Co-Ki”: First results of a Germany-wide registry on mouth and nose covering (mask) in children
https://foreignaffairsintelligencecouncil.wordpress.com/2021/02/05/corona-children-studies-co-ki-first-results-of-a-germany-wide-registry-on-mouth-and-nose-covering-mask-in-children/