NENOV, S.; BOZHINOV, P.; BONEV, B. Periodontal Status of Active Age Population in the Republic of Bulgaria. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 76, n. 1, p. 138–145, 2023. DOI: 10.7546/CRABS.2023.01.15. Disponível em: https://proceedings.bas.bg/index.php/cr/article/view/242. Acesso em: 15 jan. 2025.