PAPOCHIEV, K.; TRIFONOV, P.; TODOVICHIN, D.; IVANOVA, I.; MILANOVA- KRASTEVA, P.; KRASTEV, Z. Comparative analysis of copper and zinc levels in hepatitis C, oncology and healthy group. Acta Medica Bulgarica, Sofia, Bulgaria, v. 53, n. 2, p. 16–21, 2026. DOI: 10.2478/AMB-2026-0054. Disponível em: https://journals.mu-sofia.bg/index.php/amb/article/view/551.. Acesso em: 13 jun. 2026.