https://www.medrxiv.org/content/10.1101/2021.10.14.21264959v1 https://www.medrxiv.org/content/10.1101/2021.10.14.21264959v... and... can't find the other just n

https://www.medrxiv.org/content/10.1101/2021.10.14.21264959v1 https://www.medrxiv.org/content/10.1101/2021.10.14.21264959v... and... can't find the other just now. Note that population-based studies will find different results, AIUI mostly because of the birthday paradox.