Creation and use of didactic materials to teach the ABO blood system . Research, Society and Development, [S. l.], v. 11, n. 2, p. e3211225344, 2022. DOI: 10.33448/rsd-v11i2.25344. Disponível em: https://rsdjournal.org/rsd/article/view/25344. Acesso em: 6 dec. 2025.