COMPARITIVE BLOOD GROUP FREQUENCY RESEARCH ARTICLE. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 4, n. 3, p. 2168–2181, 2025. DOI: 10.64105/btcat108. Disponível em: https://pakjmcr.com/index.php/1/article/view/204. Acesso em: 27 jul. 2026.