ALSHEHRI , M.; ALMOHSEN, R.; ALMALKI, H.; AHMADEEN, S.; ALQAHTANI, A. . .; ALHUSAINAN, N. .; ALMOUH, R. . .; ALNOWAISIR, W.; ALBULAYHI, R.; ALMAZYAD, L.; ALNAHARI, A.; AL-KHATEEB, B. The effect of Metformin on improving survival among obese and diabetic patients affected with COVID-19: Findings of a Meta-analysis. Journal of Health Informatics in Developing Countries, v. 16, n. 2, 11 Aug. 2022.