Guidelines 2021 - The system saving lives. Journal Resuscitatio Balcanica, [S. l.], v. 7, n. 18, p. 304–309, 2021. DOI: 10.5937/jrb7-32739. Disponível em: https://test.aseestant.ceon.rs/index.php/jrb/article/view/32739. Acesso em: 11 jun. 2026.