Threatened equity: Regional asymmetries in drug investments in Brazil. Research, Society and Development, [S. l.], v. 10, n. 13, p. e179101320896, 2021. DOI: 10.33448/rsd-v10i13.20896. Disponível em: https://www.rsdjournal.org/rsd/article/view/20896. Acesso em: 1 feb. 2026.