Pre–existing Comorbidities as Potential Risk Modifiers for New-Onset Myocarditis and Pericarditis following mRNA COVID-19 Vaccination in Males Aged 18–30 in the United States: A Disproportionality Analysis using VAERS Spontaneous Reporting Data
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By
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Mohammed Salah Salem
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Yola Moride
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Bernard Bégaud
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July 13, 2026