Fajar, Jonny K., et al. “Insertion/Deletion/(I/D)/Polymorphisms/of/Angiotensin-Converting/Enzyme/Gene/and/Their/Implications/for/Susceptibility/and/Severity/of/COVID-19:/A/Systematic/Review/and/Meta-Analysis”. Narra J, vol. 4, no. 3, Dec. 2024, p. e727, doi:10.52225/narra.v4i3.727.