Hasni, I., Nursal, D. G. A., Markolinda, Y., Masrizal, M. and 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), pp. 3–17. doi: 10.24893/jkma.v16i1.798.