Challenges and strategies in attacting voluntary blood donors in southern Tocantins . Research, Society and Development, [S. l.], v. 12, n. 6, p. e17612642099, 2023. DOI: 10.33448/rsd-v12i6.42099. Disponível em: https://ojs34.rsdjournal.org/index.php/rsd/article/view/42099. Acesso em: 28 jun. 2025.