Risk of severe outcomes from COVID-19 in comorbid populations in the Omicron era: A systematic review and meta-analysis

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Chapman A, Barouch DH, Lip GYH, Pliakas T, Polverino E, Sourij H, Abduljawad S. Risk of severe outcomes from COVID-19 in comorbid populations in the Omicron era: A systematic review and meta-analysis. International Journal of Infectious Diseases. 2025 Sep;158:107958. doi: 10.1016/j.ijid.2025.107958. Epub 2025 Jun 24. [Article]