Modelling of index system of economic vitality during the COVID-19 epidemic. Clinical Medicine and Medical Research, [S. l.], v. 2, n. 1, 2021. DOI: 10.52845/CMMR/2021v1i1a6. Disponível em: https://clinicalmedicine.in/index.php/cmmr/article/view/34.. Acesso em: 19 sep. 2024.