Brief Research Report
Published on 28 Jun 2022
A Comparison Between Omicron and Earlier COVID-19 Variants' Disease Severity in the Milan Area, Italy
in Infectious Disease Epidemiology
![A Comparison Between Omicron and Earlier COVID-19 Variants' Disease Severity in the Milan Area, Italy](https://www.frontiersin.org/files/myhome article library/891162/891162_Thumb_400.jpg)
Frontiers in Epidemiology
doi 10.3389/fepid.2022.891162
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- 10 citations