ZAFAR, K. S.; SINGH, P.; VERMA, V. K.; RAM, V. Vitamin B12 and folic acid deficiency presenting as acute febrile illness: a case report. International Journal of Research in Medical Sciences, [S. l.], v. 2, n. 4, p. 1768–1770, 2017. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/2511. Acesso em: 30 oct. 2025.