KHATRAWI, E. M.; PRAJJWAL, P.; RANJAN, R. Type 1 hypersensitivity from vitamin B12 injection: a case report. International Journal of Research in Medical Sciences, [S. l.], v. 10, n. 11, p. 2671–2673, 2022. DOI: 10.18203/2320-6012.ijrms20222634. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/11244. Acesso em: 12 oct. 2025.