Larsiani, Lisa Safaah Novia, Didik Gunawan Tamtomo, and Bhisma Murti. “Meta-Analysis Correlations Between Hypertension, Smoking, and Severity Risk of COVID-19”. Journal of Epidemiology and Public Health 7, no. 3 (July 16, 2022): 311–321. Accessed May 12, 2024. https://www.jepublichealth.com/index.php/jepublichealth/article/view/487.