Hasni, I., Nursal, D. G. A., Markolinda, Y., Masrizal, M., & Yusmayanti, Y. (2022). Relationship of Smoking Risk Factors and Comorbids with Covid-19 Mortality: Systematic Review and Meta-Analysis. Jurnal Kesehatan Masyarakat Andalas, 16(1), 3–17. https://doi.org/10.24893/jkma.v16i1.798