Marhana IA, Anggoro A, Semedi BP, Maimunah U, Lefi A, Wiratama PA, Kusumastuti EH, Rinjani LG, Rosyid AN, Indrawanto DW (2026) Serum fibrinogen levels and lung fibrosis in COVID-19 patients. J Infect Dev Ctries 20:506–512. doi: 10.3855/jidc.21800