SARBAY, H. Investigation of the incidence of vitamin B12 deficiency in leukopenia and neutropenia secondary to infection. International Journal of Contemporary Pediatrics, [S. l.], v. 7, n. 1, p. 42–45, 2019. DOI: 10.18203/2349-3291.ijcp20195723. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/2919. Acesso em: 12 feb. 2026.